Perhaps you should try some spelling variations:
"demand management oversight." » "demand management government.", "debt management oversight."
"land management oversight." » "land management government."
"case management activity." » "case management activities.", "case management facility.", "case management authority.", "cash management activity.", "waste management activity.", "change management activity."
"basin management control." » "basin management contracts.", "cash management control.", "chain management control.", "business management control."
"reform management water." » "farm management water.", "firm management water.", "reform management case.", "reform management data.", "reform management based."
"crop management tools." » "cash management tools.", "crisis management tools.", "chain management tools."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("demand management oversight.") OR ("land management oversight."))) or ((("reform management water.") or ((((("crop management tools.") or ("case management activity."))) or ("basin management control."))))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("demand management oversight.") OR ("land management oversight."))) OR ((("reform management water.") OR ((((("crop management tools.") OR ("case management activity."))) OR ("basin management control."))))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"demand management oversight.\") OR (\"land management oversight.\"))) or (((\"reform management water.\") or (((((\"crop management tools.\") or (\"case management activity.\"))) or (\"basin management control.\"))))))*".
• Removing quotes may allow a broader search: (((( demand management oversight. ) OR ( land management oversight. ))) or ((( reform management water. ) or ((((( crop management tools. ) or ( case management activity. ))) or ( basin management control. ))))))*.