There is an OMNI thread with the title: Is A Daily Show cancelled?

I entered a search of "Daily Show cancelled" (without the quotes) and did not find that thread, all I get is one old thread that is not related. However, if I search for "Daily" or "Daily Show" or "A Daily Show" (without the quotes) I do find the thread.

Is the question mark in the thread title a problem? The search works just so long as I don't use the word in the title that has a question mark attached to it ("cancelled?"). Adding a question mark to the search doesn't help.