Perhaps you should try some spelling variations:
"flood management concepts." » "flood management contracts.", "land management concepts.", "fund management concepts."
"reform management control." » "reform management contracts.", "firm management control."
"farm management reforms." » "farm management reports.", "cash management reforms.", "bank management reforms.", "data management reforms."
"oxford management reform." » "records management reform.", "fund management reform.", "road management reform."
"oxford management review." » "records management review.", "fund management review.", "road 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: (((((("farm management reforms.") OR ("oxford management reform."))) OR ("oxford management review."))) OR ((("reform management control.") OR ("flood management concepts."))))~.
• Removing quotes may allow a broader search: (((((( farm management reforms. ) or ( oxford management reform. ))) or ( oxford management review. ))) or ((( reform management control. ) or ( flood management concepts. ))))~.
• Adding a wildcard symbol may retrieve word variants: (((((("farm management reforms.") or ("oxford management reform."))) or ("oxford management review."))) or ((("reform management control.") or ("flood management concepts."))))*.