Searching for surnames

I think this question may be for Arturo or Joseph. Is there a way to search the surnames other members are investigating, if they are not included in the Gedcom resource? (Other than looking up members with that surname?) For example, how can I check which other members are also investigating a particular surname or, better yet, which members are searching for a particular surname in a particular state? This may be obvious, I just haven't learned how to do it. Thanks