Perhaps you should try some spelling variations:
"comparative management river history" » "compensation management river history", "comparative management drivers history", "comparative management five history", "comparative management lever history", "comparative management live history", "comparative management lives history", "comparative management over history"
"competitive procurement basic history" » "competitive procurement case history", "competitive procurement best history", "competitive procurement baseline history", "competitive procurement basics history", "competitive procurement baltic history", "competitive procurement asia history"

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