Perhaps you should try some spelling variations:
"oxford management controls." » "oxford management control.", "oxford management contracts.", "oxford management contract.", "records management controls.", "fund management controls.", "flood management controls."
"reform management concepts." » "reform management contracts.", "farm management concepts.", "firm management concepts."
"oxford management reviews." » "oxford management overview.", "oxford management reports.", "oxford management reforms.", "records management reviews.", "fund management reviews.", "flood management reviews."
"oxford management centers." » "oxford management control.", "oxford management water.", "oxford management energy.", "records management centers.", "fund management centers.", "flood management centers."
"oxford management review." » "records management review.", "fund management review.", "flood management review.", "oxford management reform."

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("oxford management reviews.") or ("oxford management review."))) or ((((("oxford management centers.") or ("oxford management controls."))) or ("reform management concepts."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("oxford management reviews.") OR ("oxford management review."))) OR ((((("oxford management centers.") OR ("oxford management controls."))) OR ("reform management concepts.")))).
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• Adding a wildcard symbol may retrieve word variants: (((("oxford management reviews.") or ("oxford management review."))) or ((((("oxford management centers.") or ("oxford management controls."))) or ("reform management concepts."))))*.