Perhaps you should try some spelling variations:
"oxford management controls." » "oxford management control.", "oxford management contract.", "oxford management tools.", "reform management controls.", "records management controls.", "flood management controls."
"firm management entity." » "firm management energy.", "firm management activity.", "firm management quality.", "farm management entity.", "fire management entity.", "care management entity."
"city management entity." » "city management energy.", "city management activity.", "city management quality.", "cash management entity.", "case management entity.", "crop management entity."
"data management contracts." » "debt management contracts.", "cash management contracts.", "bank management contracts."
"fund management a." » "land management a.", "demand management a.", "fund management _."
"firm management concepts." » "farm management concepts.", "fire management concepts.", "care management concepts."

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

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