Short answer
Not yet. AskTuring currently searches only within the Index you have selected.
Full explanation
Right now, AskTuring’s search and question-answering features work within a single Index at a time. When you choose an Index on the chat screen, AskTuring will use only the documents in that Index to find and generate responses.
The ability to search across multiple Indexes in one query is not available at this time. This is because AskTuring is designed to maintain clear separation between datasets, which helps keep your information organized and private.
Multi-Index search is on our product roadmap for a future release. When available, it will allow you to combine results from different Indexes without compromising data separation or security.
Tips
If you need to search documents across multiple Indexes, temporarily upload copies of those documents into a single Index for that purpose.