Perhaps you should try some spelling variations:
"oxford management concepts." » "oxford management contracts.", "records management concepts.", "farm management concepts.", "road management concepts."
"flood management reports." » "flood management reform.", "land management reports."
"oxford management control." » "oxford management contracts.", "records management control.", "farm management control.", "road management control."
"oxford management case." » "records management case.", "farm management case.", "road management case.", "oxford management a."
"reform management case." » "farm management case.", "firm management case.", "reform management a."
"fund management case." » "fund management a.", "land management case.", "demand management case."

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