This seems simple enough, but can't seem to figure it out. I'd like to search all my Logos books for references to "Luke 15:7." When I do an "everything" search, it includes my commentaries, but not all my books. For example, I know there's a reference to this verse in Desiring God by John Piper, but it does not show up in my search results. Can anyone help me figure this out? Thank you!