Perhaps you should try some spelling variations:
"flood management facility." » "flood management capacity.", "flood management quality.", "land management facility.", "fund management facility."
"risk management control." » "risk management contracts."
"basin management control." » "basin management contracts.", "cash management control.", "business management control.", "crisis management control."
"reform management tools." » "farm management tools."
"chain management based." » "cash management based.", "chain management case.", "chain management board.", "chain management issues."
"firm management a." » "farm management a.", "fire management a.", "city management a.", "firm management _."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((((("risk management control.") or ("basin management control."))) or ("flood management facility."))) or ((("firm management a.") or ("chain management based."))))) or ("reform management tools."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((((("risk management control.") OR ("basin management control."))) OR ("flood management facility."))) OR ((("firm management a.") OR ("chain management based."))))) OR ("reform management tools."))*.
• Removing quotes may allow a broader search: (((((((( risk management control. ) or ( basin management control. ))) or ( flood management facility. ))) or ((( firm management a. ) or ( chain management based. ))))) or ( reform management tools. ))*.