Perhaps you should try some spelling variations:
"flood management controls." » "flood management control.", "flood management contracts.", "flood management tools.", "fund management controls."
"farm management contract." » "farm management contracts.", "farm management control.", "cash management contract.", "bank management contract.", "data management contract."
"oxford management readers." » "oxford management centers.", "oxford management reform.", "oxford management reports.", "reform management readers.", "records management readers.", "fund management readers."
"land management reviews." » "land management overview.", "land management reports.", "land management reforms."
"land management review." » "land 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: (((("oxford management readers.") or ((("land management reviews.") OR ("land management review."))))) or ((("flood management controls.") or ("farm management contract."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("oxford management readers.") OR ((("land management reviews.") OR ("land management review."))))) OR ((("flood management controls.") OR ("farm management contract.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"oxford management readers.\") or (((\"land management reviews.\") OR (\"land management review.\"))))) or (((\"flood management controls.\") or (\"farm management contract.\"))))".
• Removing quotes may allow a broader search: (((( oxford management readers. ) or ((( land management reviews. ) OR ( land management review. ))))) or ((( flood management controls. ) or ( farm management contract. )))).
• Adding a wildcard symbol may retrieve word variants: (((("oxford management readers.") or ((("land management reviews.") OR ("land management review."))))) or ((("flood management controls.") or ("farm management contract."))))*.