Perhaps you should try some spelling variations:
"chain management contracts." » "cash management contracts."
"flood management activities." » "land management activities.", "fund management activities.", "flood management _ctivities."
"firm management case." » "fire management case.", "city management case.", "fishery management case."
"case management a." » "cash management a.", "waste management a.", "change management a.", "case management _."
"care management how." » "cash management how.", "fire management how.", "change management how.", "care management from.", "care management _."
"farm management tools." » "cash management tools.", "data management tools.", "forest management tools."
"bank management tools." » "basin management tools.", "cash management tools.", "demand management tools."

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: (((((((("risk management control.") OR ("chain management contracts."))) OR ("flood management activities."))) OR ((("firm management case.") OR ((("case management a.") OR ("care management how."))))))) OR ((("farm management tools.") OR ("bank management tools."))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((((\"risk management control.\") or (\"chain management contracts.\"))) or (\"flood management activities.\"))) or (((\"firm management case.\") or (((\"case management a.\") or (\"care management how.\"))))))) or (((\"farm management tools.\") OR (\"bank management tools.\"))))~".
• Removing quotes may allow a broader search: (((((((( risk management control. ) or ( chain management contracts. ))) or ( flood management activities. ))) or ((( firm management case. ) or ((( case management a. ) or ( care management how. ))))))) or ((( farm management tools. ) OR ( bank management tools. ))))~.
• Adding a wildcard symbol may retrieve word variants: (((((((("risk management control.") or ("chain management contracts."))) or ("flood management activities."))) or ((("firm management case.") or ((("case management a.") or ("care management how."))))))) or ((("farm management tools.") OR ("bank management tools."))))*.