Perhaps you should try some spelling variations:
conflicting requirements » containing requirements, communicating requirements, cooling requirements
conjunctive management » comparative management
management features » management measures, engagement features, management figures
requirements gain » requirements maine, requirements ein, requirements martin
features history » measures history, pictures history, features historical
gain history » spain history, latin history, jaina 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 features history ) or ( conflicting requirements gain history ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( conjunctive management features history ) OR ( conflicting requirements gain history )).
• Adding a wildcard symbol may retrieve word variants: (( conjunctive management features history ) or ( conflicting requirements gain history ))*.