Perhaps you should try some spelling variations:
conjunctive management » comparative management
collective agreement » collective agreements, collective investment
history history » military history
agreement date » agreement data, agreement rate, agreement case
date history » state history, rates history, dav3e history

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( collective agreement date history ) or ( conjunctive management history history ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( collective agreement date history ) OR ( conjunctive management history history )).
• Adding a wildcard symbol may retrieve word variants: (( collective agreement date history ) or ( conjunctive management history history ))*.