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

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 ((("oxford management controls.") OR ("reform management controls."))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"oxford management concepts.\") or (((\"oxford management controls.\") OR (\"reform management controls.\"))))~".
• Removing quotes may allow a broader search: (( oxford management concepts. ) or ((( oxford management controls. ) OR ( reform management controls. ))))~.
• Adding a wildcard symbol may retrieve word variants: (("oxford management concepts.") or ((("oxford management controls.") OR ("reform management controls."))))*.