Perhaps you should try some spelling variations:
"farm management controls." » "farm management contract.", "farm management tools.", "farm management functions.", "cash management controls.", "bank management controls.", "data management controls."
"firm management reforms." » "firm management reports.", "fire management reforms.", "care management reforms.", "fishery management reforms."
"basin management concepts." » "cash management concepts.", "chain management concepts.", "business management concepts."
"city management reform." » "cash management reform.", "data management reform.", "case management reform."
"farm management contracts." » "cash management contracts.", "bank management contracts.", "data management contracts."
"farm management control." » "cash management control.", "bank management control.", "data management control."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("reform management review.") or ((("firm management reforms.") or ("city management reform."))))) or ((((((("farm management controls.") OR ("farm management contracts."))) or ("farm management control."))) or ("basin management concepts."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("reform management review.") OR ((("firm management reforms.") OR ("city management reform."))))) OR ((((((("farm management controls.") OR ("farm management contracts."))) OR ("farm management control."))) OR ("basin management concepts.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"reform management review.\") or (((\"firm management reforms.\") or (\"city management reform.\"))))) or (((((((\"farm management controls.\") OR (\"farm management contracts.\"))) or (\"farm management control.\"))) or (\"basin management concepts.\"))))".
• Removing quotes may allow a broader search: (((( reform management review. ) or ((( firm management reforms. ) or ( city management reform. ))))) or ((((((( farm management controls. ) OR ( farm management contracts. ))) or ( farm management control. ))) or ( basin management concepts. )))).
• Adding a wildcard symbol may retrieve word variants: (((("reform management review.") or ((("firm management reforms.") or ("city management reform."))))) or ((((((("farm management controls.") OR ("farm management contracts."))) or ("farm management control."))) or ("basin management concepts."))))*.