Perhaps you should try some spelling variations:
competitive requirements » competence requirements, composition requirements, competitive procurement
conjunctive management » comparative management
requirements basic » requirements based, requirements case, requirements etsi
management later » management water, management layer, management matter
later history » labor history, latin history, rates history
basic sector » basis vector, sic sector, basic set

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 later history ) or ( competitive requirements basic sector ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( conjunctive management later history ) OR ( competitive requirements basic sector )).
• Adding a wildcard symbol may retrieve word variants: (( conjunctive management later history ) or ( competitive requirements basic sector ))*.