Perhaps you should try some spelling variations:
classical sources » classical studies, classical spaces
classical schools » classical school, neoclassical schools, classic school
classical schemes » classical scheme, classical themes, classical sciences
classical scores » classical spaces, classical states, classical corpus
classical code » classical codes, classical case, classic code
code library » core library, case library, gene library

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 sources))) OR (classical schools))) OR (classical schemes)) library ) OR ( classical code library )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((((((classical scores) OR (classical sources))) or (classical schools))) or (classical schemes)) library ) OR ( classical code library ))".
• Adding a wildcard symbol may retrieve word variants: (( ((((((classical scores) OR (classical sources))) or (classical schools))) or (classical schemes)) library ) OR ( classical code library ))*.