Looking for an Extension? Have an Extension request? Post your request here for help. (Note: This forum is community supported; while there is an Extensions Development Team, said team does not dedicate itself to handling requests in this forum)
Yes: the board search only scans posts and the member search scans only users and their profile data. There is nothing that searches i.e. forum titles or PMs, likewise you're unable to find anything on i.e. FAQ.
Go to wherever you downloaded the extension and request what you want (chances are the author has no clue how to implement that).