[Features] Limit search to specific tribe

This may exist and I just can't find it, but with all of the new users this is going to become important, I think. If I'm looking for a specific post (for example, I'm currently trying to find that post with newbie questions where someone explained for to edit the shortcut bar) and I remember what tribe it was posted in, I'd like to be able to limit the search results to that tribe only.

Also, are text posts not searchable? In trying to find this one specific post, I realized I can search comments or snaps, but what I'm looking for isn't a snap.