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

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