You have to use both author + title or use the advanced search to specify the title otherwise it tries to search the full contents of all torrents on the entire site. Personally I found myanonmouse to be lacking a lot of things I found on ABB plus all the baggage that comes with being on a private tracker
You can still use the “Best of Both Worlds” if you really want to have the free CC stuff from AE but it’s not super worth it imo