Perhaps you should try some spelling variations:
"case management authority." » "case management quality.", "waste management authority.", "change management authority.", "asset management authority."
"service management concepts." » "service management contracts."
"reform management contract." » "reform management contracts.", "reform management control.", "farm management contract.", "firm management contract."
"cash management agency." » "cash management agencies.", "cash management science.", "cash management areas.", "asset management agency."
"basin management tools." » "chain management tools.", "business management tools.", "crisis management tools."
"flood management a." » "land management a.", "fund management a."
"flood management _." » "land management _.", "fund management _."
"flood management case." » "land management case.", "fund management case."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((("basin management tools.") or ((((("flood management a.") OR ("flood management _."))) or ("flood management case."))))) or ((((("cash management agency.") or ("case management authority."))) or ("service management concepts."))))) or ("reform management contract."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("basin management tools.") OR ((((("flood management a.") OR ("flood management _."))) OR ("flood management case."))))) OR ((((("cash management agency.") OR ("case management authority."))) OR ("service management concepts."))))) OR ("reform management contract."))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"basin management tools.\") or (((((\"flood management a.\") OR (\"flood management _.\"))) or (\"flood management case.\"))))) or (((((\"cash management agency.\") or (\"case management authority.\"))) or (\"service management concepts.\"))))) or (\"reform management contract.\"))*".
• Removing quotes may allow a broader search: (((((( basin management tools. ) or ((((( flood management a. ) OR ( flood management _. ))) or ( flood management case. ))))) or ((((( cash management agency. ) or ( case management authority. ))) or ( service management concepts. ))))) or ( reform management contract. ))*.