Perhaps you should try some spelling variations:
classical core » classical codes, classical case, classical charge
classical code » classical codes, classical case, classic code
"Classical core library" » "Classical case library", "Classical core libraries", "Classical source library"
"Classical code library" » "Classical case library", "Classical tape library", "Classical gene 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 code library\"))".
• Removing quotes may allow a broader search: (( Classical core library ) OR ( Classical code library )).
• Adding a wildcard symbol may retrieve word variants: (("Classical core library") OR ("Classical code library"))*.