Perhaps you should try some spelling variations:
specialist libraries » specialist librarians, spectral libraries
specific libraries » scientific libraries
special libraries » several libraries

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: academic & ((((specialist libraries) OR (specific libraries))) OR (((special libraries) OR (specific injuries)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "academic & ((((specialist libraries) OR (specific libraries))) or (((special libraries) or (specific injuries))))".
• Adding a wildcard symbol may retrieve word variants: academic & ((((specialist libraries) OR (specific libraries))) or (((special libraries) or (specific injuries))))*.