Perhaps you should try some spelling variations:
classical core » classical codes, classical charge, classical closed
classical case » classical chaos, classical chinese
"Classical core library" » "Classical code library", "Classical core libraries", "Classical source library"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"Classical core library\") OR (\"Classical case library\"))".
• Removing quotes may allow a broader search: (( Classical core library ) OR ( Classical case library )).
• Adding a wildcard symbol may retrieve word variants: (("Classical core library") OR ("Classical case library"))*.