Understandable, Mellonhead. The secret of phpBB's not-that-great search function is: Click the little button that says "Search for all terms." Then both "think" and "cafe" have to be in the thread for it to show. It also wouldn't hurt to select, at left, Eating Out in Chicagoland as the only forum you want results from.
And... you still get 312 results on 7 pages. So then you think, what other word could I include? "Ashland," on the theory that anyone who did a full review would include the address. And that tells me... hmm, nobody seems to have written about it, at least not enough to start a thread.