Update app.py

app.py

@@ -105,20 +105,20 @@ def recreate_query_engine():
         # Create BM25 retriever
         bm25_retriever = BM25Retriever.from_defaults(
             docstore=vector_index.docstore, 
-            similarity_top_k=10
+            similarity_top_k=15
         )
         
         # Create vector retriever
         vector_retriever = VectorIndexRetriever(
             index=vector_index, 
-            similarity_top_k=10,
+            similarity_top_k=20,
             similarity_cutoff=0.5
         )
         
         # Create hybrid retriever
         hybrid_retriever = QueryFusionRetriever(
             [vector_retriever, bm25_retriever],
-            similarity_top_k=25,
+            similarity_top_k=30,
             num_queries=1
         )