After copying and pasting the words as I had done so many times before, for some reason, the shop search can't find Vesnali Coin.

I get

This also happens when I pick it from the drop down list.

This is unfortunately just a thing right now. Shop search is broken for all items. There's a thread about it in Problems and Bugs so hopefully it will be fixed soon.

Oops. I should have looked a little closer (and really thought it was just me and these coins). Thanks for telling me.