I just did and one test did find what I wanted, but did not give me all the results available. The second test failed miserably. Ex-I start by typing a letter. Theory, results should contain all the templates whose titles and tags begin begin with a Y. When typing Y the default results shown when Decent Memes is opened did not change. When I expanded it to Yin it did give me fewer results and one result that I know has the word Yin in the title or tags. The others I don't think were related.

Next I tried Z and got quite a few results, one I know for sure had a title or tag beginning with a Z, but other options in the results I don't think that's the case. When I expanded that search to the word Zen, which I know there are multiple templates with that tag the results returned "no templates found".