I use JRemote2 for Android on a Samsung phone and JRemote for iOS on an iPad.
The search functionality seems not to be identical for these two apps and I am surprised that there’s no one making an issue of that on this forum.
On the iOS app, search is centralized. Enter your text and you get responsive artists, albums, and individual tracks nicely itemized and displayed on a scrollable screen.
In contrast, the Android search function appears crippled. Unless I am missing something, you can search only within a single category, i.e., within the artist listing, the album listing, or the genres. As there is no individual track listing category, you can’t search for a song title at all.
The old third-party app, EOS, could do a universal search like the iOS one (as well as searches within a display category), so this functionality clearly can be implemented in Android.
Please let me know if there is available utility that I have failed to discover and appreciate.