Perhaps you should try some spelling variations:
"comparative management class history" » "compensation management class history", "comparative management classes history", "comparative management classic history", "comparative management case history", "comparative management crises history"
"comparative measures references factors" » "comparative features references factors", "comparable measures references factors", "comparative measurements references factors", "comparative resources references factors", "comparative cases references factors", "comparative figures references factors"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("comparative management class history") or ("comparative measures references factors"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("comparative management class history") OR ("comparative measures references factors")).
• Removing quotes may allow a broader search: (( comparative management class history ) or ( comparative measures references factors )).
• Adding a wildcard symbol may retrieve word variants: (("comparative management class history") or ("comparative measures references factors"))*.