Perhaps you should try some spelling variations:
classical schemes » classical scheme, classical themes, classical sciences
classical scores » classical sources, classical schools, clinical scores
"classical code library" » "classical codes library", "classical case library", "classic code library"
"classical gene library" » "classical game library", "classical gate library", "classical general library", "classical genuine library", "classical gene libraries", "classical reuse library"

Try widening your search to All Fields.

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