Perhaps you should try some spelling variations:
"oxford management concepts." » "oxford management contracts.", "records management concepts.", "flood management concepts.", "farm management concepts."
"city management reviews." » "city management review.", "city management overview.", "city management reforms.", "cash management reviews.", "data management reviews.", "case management reviews."
"fire management reports." » "fire management reform.", "side management reports.", "case management reports.", "zone management reports."
"fund management control." » "fund management contracts.", "land management control.", "demand management control."
"reform management data." » "farm management data.", "firm management data.", "reform management a.", "reform management case."

Try widening your search to All Fields.

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