Perhaps you should try some spelling variations:
specialist libraries » spectral libraries
scientific libraries » scientific theories, science libraries
specific libraries » specific injuries
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 (specialist librarians))) OR (specific libraries))) OR (special libraries))) OR (scientific libraries)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "academic & ((((((((specialist libraries) OR (specialist librarians))) or (specific libraries))) or (special libraries))) or (scientific libraries))".
• Adding a wildcard symbol may retrieve word variants: academic & ((((((((specialist libraries) OR (specialist librarians))) or (specific libraries))) or (special libraries))) or (scientific libraries))*.