Perhaps you should try some spelling variations:
classical sources » classical studies, classical spaces
sources library » source library, resource library, sources linear
studies library » studies libraries, itunes library, ladies library

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "\"((\\"classical sources library\\") or (\\"classical ((studies library) OR (studies literary))\\"))\"".
• Removing quotes may allow a broader search: (( classical sources library ) or ( classical ((studies library) OR (studies literary)) )).