Perhaps you should try some spelling variations:
"flood management activity." » "flood management activities.", "flood management facility.", "flood management authority.", "land management activity.", "flood management _ctivity."
"fund management activity." » "fund management activities.", "fund management facility.", "fund management authority.", "land management activity.", "demand management activity.", "fund management _ctivity."
"forest management a." » "project management a.", "debt management a.", "forest management _."
"reform management tools." » "farm management tools.", "firm management tools."
"asset management contracts." » "debt management contracts."
"bank management control." » "basin management control.", "demand management control.", "change management control."

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