Perhaps you should try some spelling variations:
classical theories » classical theory
physical theories » physical therapy, physical theoretical
classical scores » classical sources, classical schemes, classical schools
classical scheme » classical schemes, classic scheme, classical theme
classical codes » classical cases, classical geodesy, classical closed
codes library » code library, models library, cases 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 theories) OR (physical theories))) OR (classical scheme)))) library ) OR ( classical codes library )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((classical scores) or (((((classical theories) OR (physical theories))) or (classical scheme)))) library ) or ( classical codes library ))".
• Adding a wildcard symbol may retrieve word variants: (( ((classical scores) or (((((classical theories) OR (physical theories))) or (classical scheme)))) library ) or ( classical codes library ))*.