diff --git a/server/router/api/v1/memo_service.go b/server/router/api/v1/memo_service.go
index 36d36db51..2b0d36f51 100644
--- a/server/router/api/v1/memo_service.go
+++ b/server/router/api/v1/memo_service.go
@@ -135,7 +135,7 @@ func (s *APIV1Service) ListMemos(ctx context.Context, request *v1pb.ListMemosReq
 		if err := s.validateFilter(ctx, request.Filter); err != nil {
 			return nil, status.Errorf(codes.InvalidArgument, "invalid filter: %v", err)
 		}
-		memoFind.Filter = &request.Filter
+		memoFind.Filters = append(memoFind.Filters, request.Filter)
 	}
 
 	currentUser, err := s.GetCurrentUser(ctx)
@@ -146,13 +146,8 @@ func (s *APIV1Service) ListMemos(ctx context.Context, request *v1pb.ListMemosReq
 		memoFind.VisibilityList = []store.Visibility{store.Public}
 	} else {
 		if memoFind.CreatorID == nil {
-			internalFilter := fmt.Sprintf(`creator_id == %d || visibility in ["PUBLIC", "PROTECTED"]`, currentUser.ID)
-			if memoFind.Filter != nil {
-				filter := fmt.Sprintf("(%s) && (%s)", *memoFind.Filter, internalFilter)
-				memoFind.Filter = &filter
-			} else {
-				memoFind.Filter = &internalFilter
-			}
+			filter := fmt.Sprintf(`creator_id == %d || visibility in ["PUBLIC", "PROTECTED"]`, currentUser.ID)
+			memoFind.Filters = append(memoFind.Filters, filter)
 		} else if *memoFind.CreatorID != currentUser.ID {
 			memoFind.VisibilityList = []store.Visibility{store.Public, store.Protected}
 		}
diff --git a/server/router/api/v1/user_service_stats.go b/server/router/api/v1/user_service_stats.go
index 552e61e29..775f6f189 100644
--- a/server/router/api/v1/user_service_stats.go
+++ b/server/router/api/v1/user_service_stats.go
@@ -36,13 +36,8 @@ func (s *APIV1Service) ListAllUserStats(ctx context.Context, _ *v1pb.ListAllUser
 		memoFind.VisibilityList = []store.Visibility{store.Public}
 	} else {
 		if memoFind.CreatorID == nil {
-			internalFilter := fmt.Sprintf(`creator_id == %d || visibility in ["PUBLIC", "PROTECTED"]`, currentUser.ID)
-			if memoFind.Filter != nil {
-				filter := fmt.Sprintf("(%s) && (%s)", *memoFind.Filter, internalFilter)
-				memoFind.Filter = &filter
-			} else {
-				memoFind.Filter = &internalFilter
-			}
+			filter := fmt.Sprintf(`creator_id == %d || visibility in ["PUBLIC", "PROTECTED"]`, currentUser.ID)
+			memoFind.Filters = append(memoFind.Filters, filter)
 		} else if *memoFind.CreatorID != currentUser.ID {
 			memoFind.VisibilityList = []store.Visibility{store.Public, store.Protected}
 		}
diff --git a/store/db/mysql/memo.go b/store/db/mysql/memo.go
index 6518df3a2..3c8684bdd 100644
--- a/store/db/mysql/memo.go
+++ b/store/db/mysql/memo.go
@@ -50,6 +50,24 @@ func (d *DB) CreateMemo(ctx context.Context, create *store.Memo) (*store.Memo, e
 func (d *DB) ListMemos(ctx context.Context, find *store.FindMemo) ([]*store.Memo, error) {
 	where, having, args := []string{"1 = 1"}, []string{"1 = 1"}, []any{}
 
+	for _, filterStr := range find.Filters {
+		// Parse filter string and return the parsed expression.
+		// The filter string should be a CEL expression.
+		parsedExpr, err := filter.Parse(filterStr, filter.MemoFilterCELAttributes...)
+		if err != nil {
+			return nil, err
+		}
+		convertCtx := filter.NewConvertContext()
+		// ConvertExprToSQL converts the parsed expression to a SQL condition string.
+		if err := d.ConvertExprToSQL(convertCtx, parsedExpr.GetExpr()); err != nil {
+			return nil, err
+		}
+		condition := convertCtx.Buffer.String()
+		if condition != "" {
+			where = append(where, fmt.Sprintf("(%s)", condition))
+			args = append(args, convertCtx.Args...)
+		}
+	}
 	if v := find.ID; v != nil {
 		where, args = append(where, "`memo`.`id` = ?"), append(args, *v)
 	}
@@ -112,24 +130,6 @@ func (d *DB) ListMemos(ctx context.Context, find *store.FindMemo) ([]*store.Memo
 			where = append(where, "JSON_EXTRACT(`memo`.`payload`, '$.property.hasIncompleteTasks') IS TRUE")
 		}
 	}
-	if v := find.Filter; v != nil {
-		// Parse filter string and return the parsed expression.
-		// The filter string should be a CEL expression.
-		parsedExpr, err := filter.Parse(*v, filter.MemoFilterCELAttributes...)
-		if err != nil {
-			return nil, err
-		}
-		convertCtx := filter.NewConvertContext()
-		// ConvertExprToSQL converts the parsed expression to a SQL condition string.
-		if err := d.ConvertExprToSQL(convertCtx, parsedExpr.GetExpr()); err != nil {
-			return nil, err
-		}
-		condition := convertCtx.Buffer.String()
-		if condition != "" {
-			where = append(where, fmt.Sprintf("(%s)", condition))
-			args = append(args, convertCtx.Args...)
-		}
-	}
 	if find.ExcludeComments {
 		having = append(having, "`parent_id` IS NULL")
 	}
diff --git a/store/db/postgres/memo.go b/store/db/postgres/memo.go
index d9f57f7d7..19323505a 100644
--- a/store/db/postgres/memo.go
+++ b/store/db/postgres/memo.go
@@ -41,6 +41,25 @@ func (d *DB) CreateMemo(ctx context.Context, create *store.Memo) (*store.Memo, e
 func (d *DB) ListMemos(ctx context.Context, find *store.FindMemo) ([]*store.Memo, error) {
 	where, args := []string{"1 = 1"}, []any{}
 
+	for _, filterStr := range find.Filters {
+		// Parse filter string and return the parsed expression.
+		// The filter string should be a CEL expression.
+		parsedExpr, err := filter.Parse(filterStr, filter.MemoFilterCELAttributes...)
+		if err != nil {
+			return nil, err
+		}
+		convertCtx := filter.NewConvertContext()
+		convertCtx.ArgsOffset = len(args)
+		// ConvertExprToSQL converts the parsed expression to a SQL condition string.
+		if err := d.ConvertExprToSQL(convertCtx, parsedExpr.GetExpr()); err != nil {
+			return nil, err
+		}
+		condition := convertCtx.Buffer.String()
+		if condition != "" {
+			where = append(where, fmt.Sprintf("(%s)", condition))
+			args = append(args, convertCtx.Args...)
+		}
+	}
 	if v := find.ID; v != nil {
 		where, args = append(where, "memo.id = "+placeholder(len(args)+1)), append(args, *v)
 	}
@@ -103,25 +122,6 @@ func (d *DB) ListMemos(ctx context.Context, find *store.FindMemo) ([]*store.Memo
 			where = append(where, "(memo.payload->'property'->>'hasIncompleteTasks')::BOOLEAN IS TRUE")
 		}
 	}
-	if v := find.Filter; v != nil {
-		// Parse filter string and return the parsed expression.
-		// The filter string should be a CEL expression.
-		parsedExpr, err := filter.Parse(*v, filter.MemoFilterCELAttributes...)
-		if err != nil {
-			return nil, err
-		}
-		convertCtx := filter.NewConvertContext()
-		convertCtx.ArgsOffset = len(args)
-		// ConvertExprToSQL converts the parsed expression to a SQL condition string.
-		if err := d.ConvertExprToSQL(convertCtx, parsedExpr.GetExpr()); err != nil {
-			return nil, err
-		}
-		condition := convertCtx.Buffer.String()
-		if condition != "" {
-			where = append(where, fmt.Sprintf("(%s)", condition))
-			args = append(args, convertCtx.Args...)
-		}
-	}
 	if find.ExcludeComments {
 		where = append(where, "memo_relation.related_memo_id IS NULL")
 	}
diff --git a/store/db/sqlite/memo.go b/store/db/sqlite/memo.go
index db8a9831c..3460282a4 100644
--- a/store/db/sqlite/memo.go
+++ b/store/db/sqlite/memo.go
@@ -42,6 +42,24 @@ func (d *DB) CreateMemo(ctx context.Context, create *store.Memo) (*store.Memo, e
 func (d *DB) ListMemos(ctx context.Context, find *store.FindMemo) ([]*store.Memo, error) {
 	where, args := []string{"1 = 1"}, []any{}
 
+	for _, filterStr := range find.Filters {
+		// Parse filter string and return the parsed expression.
+		// The filter string should be a CEL expression.
+		parsedExpr, err := filter.Parse(filterStr, filter.MemoFilterCELAttributes...)
+		if err != nil {
+			return nil, err
+		}
+		convertCtx := filter.NewConvertContext()
+		// ConvertExprToSQL converts the parsed expression to a SQL condition string.
+		if err := d.ConvertExprToSQL(convertCtx, parsedExpr.GetExpr()); err != nil {
+			return nil, err
+		}
+		condition := convertCtx.Buffer.String()
+		if condition != "" {
+			where = append(where, fmt.Sprintf("(%s)", condition))
+			args = append(args, convertCtx.Args...)
+		}
+	}
 	if v := find.ID; v != nil {
 		where, args = append(where, "`memo`.`id` = ?"), append(args, *v)
 	}
@@ -104,24 +122,6 @@ func (d *DB) ListMemos(ctx context.Context, find *store.FindMemo) ([]*store.Memo
 			where = append(where, "JSON_EXTRACT(`memo`.`payload`, '$.property.hasIncompleteTasks') IS TRUE")
 		}
 	}
-	if v := find.Filter; v != nil {
-		// Parse filter string and return the parsed expression.
-		// The filter string should be a CEL expression.
-		parsedExpr, err := filter.Parse(*v, filter.MemoFilterCELAttributes...)
-		if err != nil {
-			return nil, err
-		}
-		convertCtx := filter.NewConvertContext()
-		// ConvertExprToSQL converts the parsed expression to a SQL condition string.
-		if err := d.ConvertExprToSQL(convertCtx, parsedExpr.GetExpr()); err != nil {
-			return nil, err
-		}
-		condition := convertCtx.Buffer.String()
-		if condition != "" {
-			where = append(where, fmt.Sprintf("(%s)", condition))
-			args = append(args, convertCtx.Args...)
-		}
-	}
 	if find.ExcludeComments {
 		where = append(where, "`parent_id` IS NULL")
 	}
diff --git a/store/memo.go b/store/memo.go
index e29bb0a4e..5192f881f 100644
--- a/store/memo.go
+++ b/store/memo.go
@@ -74,7 +74,7 @@ type FindMemo struct {
 	PayloadFind     *FindMemoPayload
 	ExcludeContent  bool
 	ExcludeComments bool
-	Filter          *string
+	Filters         []string
 
 	// Pagination
 	Limit  *int