Examples for channel search
curl -X GET 'https://api.twitch.tv/helix/search/channels?query=loserfruit' \
-H 'Authorization: Bearer 2gbdx6oar67tqtcmt49t3wpcgycthx' \
-H 'Client-Id: wbmytr93xzw8zbg0p1izqyzzc5mbiz'
curl -X GET 'https://api.twitch.tv/helix/search/channels?query=a_seagull' \
-H 'Authorization: Bearer 2gbdx6oar67tqtcmt49t3wpcgycthx' \
-H 'Client-Id: wbmytr93xzw8zbg0p1izqyzzc5mbiz'
That searches usernames too so a / on the end wouldn’t get good results either. So not sure where you saw that, and if so I wouldn’t expect good results for it.
But it does search name and description
Returns a list of channels (users who have streamed within the past 6 months) that match the query via channel name or description either entirely or partially. Results include both live and offline channels.
It just wont’ “search well” I don’t think