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