Perhaps you should try some spelling variations:
"risk management control." » "risk management contracts."
"basin management control." » "basin management contracts.", "chain management control.", "business management control.", "crisis management control."
"land management entity." » "land management energy.", "land management activity.", "land management quality."
"cash management based." » "cash management case.", "cash management board.", "cash management issues.", "asset management based."
"firm management a." » "fire management a.", "city management a.", "care management a."
"firm management _." » "fire management _.", "city management _.", "care management _."
"farm management a." » "bank management a.", "data management a.", "forest 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: (((((((("risk management control.") OR ("basin management control."))) OR ("land management entity."))) OR ((((((("firm management a.") OR ("firm management _."))) OR ("farm management a."))) OR ("cash management based."))))) OR ("reform management tools."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((((\"risk management control.\") or (\"basin management control.\"))) or (\"land management entity.\"))) or (((((((\"firm management a.\") OR (\"firm management _.\"))) or (\"farm management a.\"))) or (\"cash management based.\"))))) or (\"reform management tools.\"))~".
• Removing quotes may allow a broader search: (((((((( risk management control. ) or ( basin management control. ))) or ( land management entity. ))) or ((((((( firm management a. ) OR ( firm management _. ))) or ( farm management a. ))) or ( cash management based. ))))) or ( reform management tools. ))~.
• Adding a wildcard symbol may retrieve word variants: (((((((("risk management control.") or ("basin management control."))) or ("land management entity."))) or ((((((("firm management a.") OR ("firm management _."))) or ("farm management a."))) or ("cash management based."))))) or ("reform management tools."))*.