Perhaps you should try some spelling variations:
conjunctive management » comparative management
procurement between » requirement between, procurement bulletin
management firm » management from, management five, management fcm
between sector » between debtor, between actors, between seawater
firm history » from 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 firm history ) or ( competitive procurement between sector ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( conjunctive management firm history ) OR ( competitive procurement between sector )).
• Adding a wildcard symbol may retrieve word variants: (( conjunctive management firm history ) or ( competitive procurement between sector ))*.