Perhaps you should try some spelling variations:
"oxford management controls." » "oxford management contract.", "oxford management tools.", "oxford management functions.", "records management controls.", "flood management controls.", "road management controls."
"farm management controls." » "farm management contract.", "farm management tools.", "farm management functions.", "cash management controls.", "bank management controls.", "data management controls."
"oxford management contracts." » "records management contracts.", "flood management contracts.", "road management contracts."
"reform management control." » "firm management control."
"fund management concepts." » "land management concepts.", "demand management concepts."

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("fund management concepts.") OR ((((("oxford management controls.") OR ((("oxford management contracts.") OR ("reform management control."))))) OR ("farm management controls."))))~.
• Removing quotes may allow a broader search: (( fund management concepts. ) or ((((( oxford management controls. ) or ((( oxford management contracts. ) or ( reform management control. ))))) or ( farm management controls. ))))~.
• Adding a wildcard symbol may retrieve word variants: (("fund management concepts.") or ((((("oxford management controls.") or ((("oxford management contracts.") or ("reform management control."))))) or ("farm management controls."))))*.