Perhaps you should try some spelling variations:
"oxford management concepts." » "oxford management contracts.", "reform management concepts.", "records management concepts.", "farm management concepts."
"fund management concepts." » "fund management contracts.", "demand management concepts."
"land management reviews." » "land management review.", "land management overview.", "land management reforms."
"city management reform." » "cash management reform.", "data management reform.", "case management reform."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((((("land management reviews.") or ("flood management reports."))) or ("city management reform."))) or ((("oxford management concepts.") OR ("fund management concepts."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("land management reviews.") OR ("flood management reports."))) OR ("city management reform."))) OR ((("oxford management concepts.") OR ("fund management concepts."))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"land management reviews.\") or (\"flood management reports.\"))) or (\"city management reform.\"))) or (((\"oxford management concepts.\") OR (\"fund management concepts.\"))))*".
• Removing quotes may allow a broader search: (((((( land management reviews. ) or ( flood management reports. ))) or ( city management reform. ))) or ((( oxford management concepts. ) OR ( fund management concepts. ))))*.