Perhaps you should try some spelling variations:
classical scores » classical sources, classical schemes, classical schools
classical school » neoclassical school
"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 scores) or (classical school)) library") OR ("classical core library")).
• Removing quotes may allow a broader search: (( ((classical scores) or (classical school)) library ) or ( classical core library )).
• Adding a wildcard symbol may retrieve word variants: (("((classical scores) or (classical school)) library") or ("classical core library"))*.