Perhaps you should try some spelling variations:
"comparative management time history" » "compensation management time history", "comparative management tqm history", "comparative management te history", "comparative management tirm history", "comparative management crime history", "comparative management life history", "comparative management rome history"
"competitive procurement references factors" » "competitive procurement reference factors", "competitive measurement references factors", "competitive document 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 time history") OR ("competitive procurement references factors"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"comparative management time history\") OR (\"competitive procurement references factors\"))".
• Removing quotes may allow a broader search: (( comparative management time history ) OR ( competitive procurement references factors )).
• Adding a wildcard symbol may retrieve word variants: (("comparative management time history") OR ("competitive procurement references factors"))*.