Do you search with a # or with a @ ? I thought I knew, but I can't seem to find a blogger I know is on Nostr who's handle is Brainpod.
Discussion
nostr:npub1qq6dytsmhc83w2w9595ccaj8j3e3hzm5g4r4m29x2fj8cxwttelqfwtx43
Nostr.band is always a good way to search
Searching can be very different from client to client, and your results may vary. Generally, though, searching for a user would be an @, if anything at all, and searching for a topic or tag would be a #.