Why don't all the websites show up when I search for them

Like when I use advanced search, change media type to web type in ninja for the title, [http://ninja-museum.com/](https://web.archive.org/web/2/http://ninja-museum.com/) doesn't show up even though it's archived in the wayback machine. Like what????????? i was searching for another deleted website btw, ninja archive or smth, was a blog