Perhaps you should try some spelling variations:
management controls » management control, management contracts, management contract
management concepts » management contracts
management centers » management control, management water, management energy
reform management » farm management, firm management

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( oxford ((management centers) OR (management concepts)). ) or ( reform management controls. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( oxford ((management centers) OR (management concepts)). ) OR ( reform management controls. )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( oxford ((management centers) OR (management concepts)). ) or ( reform management controls. ))".
• Adding a wildcard symbol may retrieve word variants: (( oxford ((management centers) OR (management concepts)). ) or ( reform management controls. ))*.