Perhaps you should try some spelling variations:
"classical sources library" » "classical studies library", "classical spaces library", "classical source library", "classical resource library"
"classical core library" » "classical codes library", "classical case library", "classical charge library", "classical code library", "classical core 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: (("classical sources library") OR ("classical core library"))*.
• Removing quotes may allow a broader search: (( classical sources library ) or ( classical core library ))*.