Perhaps you should try some spelling variations:
"alan guides for the bush libraries." » "alan guides for the busy librarian.", "alan guides for the bac libraries.", "ala guides for the bush libraries.", "plan guides for the bush libraries.", "plan guide for the bush libraries."
"alan guides for the bus librarians." » "alan guides for the busy librarian.", "alan guides for the usa librarians.", "alan guides for the _ librarians.", "ala guides for the bus librarians.", "plan guides for the bus librarians.", "plan guide for the bus librarians."

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("alan guides for the bush libraries.") OR ("alan guides for the bus librarians."))~.
• Removing quotes may allow a broader search: (( alan guides for the bush libraries. ) or ( alan guides for the bus librarians. ))~.
• Adding a wildcard symbol may retrieve word variants: (("alan guides for the bush libraries.") or ("alan guides for the bus librarians."))*.