Update app.py

app.py

@@ -58,7 +58,7 @@ class PDFChatbot:
         if current_chunk:
             chunks.append(" ".join(current_chunk))
         
-        db = FAISS.from_documents(docs, HuggingFaceEmbeddings(model_name='bkai-foundation-models/vietnamese-bi-encoder'))
+        db = FAISS.from_documents(chunks, HuggingFaceEmbeddings(model_name='bkai-foundation-models/vietnamese-bi-encoder'))
 
         relevant_chunks = db.similarity_search(user_question, k=3)
         relevant_chunks = [chunk.page_content for chunk in relevant_chunks]