Perhaps you should try some spelling variations:
"land management functions." » "land management operations.", "land management education."
"debt management contract." » "debt management control."
"demand management contracts." » "demand management controls."
"bank management reports." » "bank management reform.", "basin management reports.", "risk management reports.", "cash management reports."
"flood management case." » "fund management case.", "flood management a."
"road management concepts." » "fund management concepts.", "chain management concepts."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("bank management reports.") or ((((("flood management case.") or ((((("debt management contract.") or ("demand management contracts."))) or ((("land management functions.") OR ("land management practices."))))))) or ("road management concepts."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("bank management reports.") OR ((((("flood management case.") OR ((((("debt management contract.") OR ("demand management contracts."))) OR ((("land management functions.") OR ("land management practices."))))))) OR ("road management concepts."))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"bank management reports.\") or (((((\"flood management case.\") or (((((\"debt management contract.\") or (\"demand management contracts.\"))) or (((\"land management functions.\") OR (\"land management practices.\"))))))) or (\"road management concepts.\"))))*".
• Removing quotes may allow a broader search: (( bank management reports. ) or ((((( flood management case. ) or ((((( debt management contract. ) or ( demand management contracts. ))) or ((( land management functions. ) OR ( land management practices. ))))))) or ( road management concepts. ))))*.