Understood. That's what I thought.
For what it is worth, if I think the flashcard is "interesting enough", I'll convert it to a user dictionary entry and then it becomes searchable.
I was thinking more along the lines of my phrase flash cards. Those are not something I want to turn into a user dictionary entry (why not? maybe I should) and I was just looking for a way to search them.
As for v4, since flashcards will effectively be a user dictionary of their own, then I guess it's a moot point.
Thanks for the explanation guys.