Perhaps you should try some spelling variations:
"classical resource library" » "classical resources library", "classical source library", "classical sources library", "classical resource literacy"
"classical resource hierarchy" » "classical resources hierarchy", "classical source hierarchy", "classical sources hierarchy"
"classical closed library" » "classical case library", "classical class library", "classical cases library", "classical chosen library", "classical clone library", "classical cloud library"
"classical core library" » "classical codes library", "classical case library", "classical charge library", "classical code library", "classical core libraries"

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