Perhaps you should try some spelling variations:
"comparative management crises history" » "compensation management crises history", "comparative management cross history", "comparative management cases history", "comparative management choices history"
"competitive procurement reference other" » "competitive procurement references other", "competitive procurement experience other", "competitive procurement evidence other", "competitive procurement reference further", "competitive procurement reference letter"

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 crises history") or ("competitive procurement reference other"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("comparative management crises history") OR ("competitive procurement reference other")).
• Removing quotes may allow a broader search: (( comparative management crises history ) or ( competitive procurement reference other )).
• Adding a wildcard symbol may retrieve word variants: (("comparative management crises history") or ("competitive procurement reference other"))*.