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

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: (((((("basin management tools.") OR ((("flood management a.") OR ("flood management case."))))) OR ((((("cash management agency.") OR ((("case management authority.") OR ("asset management authority."))))) OR ("service management concepts."))))) OR ("farm 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 case.\"))))) or (((((\"cash management agency.\") or (((\"case management authority.\") OR (\"asset management authority.\"))))) or (\"service management concepts.\"))))) or (\"farm management contract.\"))~".
• Removing quotes may allow a broader search: (((((( basin management tools. ) or ((( flood management a. ) or ( flood management case. ))))) or ((((( cash management agency. ) or ((( case management authority. ) OR ( asset management authority. ))))) or ( service management concepts. ))))) or ( farm management contract. ))~.
• Adding a wildcard symbol may retrieve word variants: (((((("basin management tools.") or ((("flood management a.") or ("flood management case."))))) or ((((("cash management agency.") or ((("case management authority.") OR ("asset management authority."))))) or ("service management concepts."))))) or ("farm management contract."))*.