I've started putting specific keywords before the title of the icon itself. So I have a bunch of "Smile" "Smirk" "Scoff" "Sad" "Stride" (and other words that don't start with s but I was on a roll) so that if someone is Angry, I can just type in angry and get all the angry icons at once to choose from.

This random icon is "Surprise - Huh Brow Furrow"