Update app.py

app.py

@@ -110,7 +110,7 @@ def index_and_search(query, pdf_metadata):
             retrieved_contents[title] = []
         retrieved_contents[title].append(ret_cont['sentence'])
     
-    retrieved_contents = {k: '\n'.join(v) for k, v in retrieved_contents.items()}
+    retrieved_contents = {k: '\n'.join(v) for k, v in retrieved_contents.items() if len(v) > 2}
 
     return retrieved_contents, embedding_time, retrieval_time