Try leaving the word “by” out of your search. You’re getting those results because they contain the word “by” in the Title. If I try searching “Dune Frank Herbert”, I get better results.
But, I do think booklikes needs to tweak the database/search so these results aren't the first to show (most in use by booklikers come first, ones with most editions first would likely dump the about-the-book-books to last, some member or librarian option to denote is about the book rare than being the book...)
Yeah, that's the way I default search because of the "interesting" results you can get on the GR search engine. Title then author or just author's last name, no "by" or comma. If I'm really desperate I'll pull out the ISBN.
But, I do think booklikes needs to tweak the database/search so these results aren't the first to show (most in use by booklikers come first, ones with most editions first would likely dump the about-the-book-books to last, some member or librarian option to denote is about the book rare than being the book...)