It only shows one user, as you only looked up one user.
You told your tool/website/page to only lookup and display streamerhouse so change yoru URL’s to match the 30 you want to lookup.
Both Get Users and Get Streams Support looking up multiple users at once.
So, for example:
https://api.twitch.tv/helix/streams?user_login=foo&user_login=bar
https://api.twitch.tv/helix/users?login=foo&login=bar