Perhaps you should try some spelling variations:
"land management controls." » "land management control.", "land management functions.", "land management protocols."
"debt management contract." » "debt management control."
"debt management contracts." » "debt management controls."
"bank management reform." » "basin management reform.", "cash management reform.", "demand management reform."
"fund management case." » "demand management case.", "fund management a."

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