I’ve noticed before that the folk at Kalahari.net seem to have problems with their search engine. I was just trying to find a book to link to for another post and the first hit from an author search for David Allen returned this.
How they made that match I’d love to know. I have sometimes seen where a title search doesn’t find something but an author or artist search reveals that they do in fact have the very title their search couldn’t find. Perhaps they should consider looking into this.