It may be in the process of building the search indexes/database. I have no idea, just guessing, but it could be that.Search function is not working correctly. Maybe it is time limited now? I tried searching for "andouille" and got no results at all, even though I've posted about dishes with it a lot. Same with "truffle," only the post from today shows up.
I’ll try searching on “andouille” in a few hours, and see if results start populating.