Perhaps you should try some spelling variations:
"conjunctive management system history" » "comparative management system history", "conjunctive management systems history", "conjunctive management systems historic", "conjunctive management systems story"
"competitive procurement make history" » "competitive procurement market history", "competitive procurement case history", "competitive procurement markets history", "competitive procurement making history", "competitive procurement trade history"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("conjunctive management system history") or ("competitive procurement make history"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("conjunctive management system history") OR ("competitive procurement make history"))*.
• Removing quotes may allow a broader search: (( conjunctive management system history ) or ( competitive procurement make history ))*.