Jeremy Burge of Emojipedia:
So here we are. Let’s say you type the Apple name for an emoji. Will it always come up? No.
The woman raising her hand? Apple calls her “Happy Woman Raising One Hand”:
If you search for this exact phrase, no results are shown:
It’s not clear why “raising” works as a search term here but not “happy” or “happy woman” (or even “hand” fails to bring this up).
This is pretty bad. However, I’ve tried everything that Burge cites in this post, and the one I quoted here is the only one where I found any discrepancy between the example and my experience. The search term “happy” works fine for me. Everything else Burge cites checks out, and it’s embarrassing.