Perhaps you should try some spelling variations:
"oxford management concepts." » "oxford management contracts.", "reform management concepts.", "records management concepts.", "flood management concepts."
"oxford management control." » "oxford management contracts.", "reform management control.", "records management control.", "flood management control."
"demand management reform." » "land management reform.", "debt management reform."
"oxford management case." » "reform management case.", "records management case.", "flood management case.", "oxford management a."
"fund management review." » "land management review."

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