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

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: (((("oxford management concepts.") OR ("land management concepts."))) OR ((((("fund management control.") OR ("farm management tools."))) OR ("reform management contract."))))~.
• Removing quotes may allow a broader search: (((( oxford management concepts. ) or ( land management concepts. ))) or ((((( fund management control. ) or ( farm management tools. ))) or ( reform management contract. ))))~.
• Adding a wildcard symbol may retrieve word variants: (((("oxford management concepts.") or ("land management concepts."))) or ((((("fund management control.") or ("farm management tools."))) or ("reform management contract."))))*.