Perhaps you should try some spelling variations:
"oxford management concepts." » "oxford management contracts.", "reform management concepts.", "records management concepts.", "fund management concepts."
"land management reviews." » "land management review.", "land management overview.", "land management reforms."
"flood management reports." » "fund management reports."
"firm management reform." » "fire management reform.", "city management reform.", "care management reform."
"farm management reform." » "cash management reform.", "bank management reform.", "data 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 ((("firm management reform.") OR ("farm management reform."))))) or ("oxford management concepts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("land management reviews.") OR ("flood management reports."))) OR ((("firm management reform.") OR ("farm management reform."))))) OR ("oxford management concepts."))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"land management reviews.\") or (\"flood management reports.\"))) or (((\"firm management reform.\") OR (\"farm management reform.\"))))) or (\"oxford management concepts.\"))*".
• Removing quotes may allow a broader search: (((((( land management reviews. ) or ( flood management reports. ))) or ((( firm management reform. ) OR ( farm management reform. ))))) or ( oxford management concepts. ))*.