Perhaps you should try some spelling variations:
"demand management controls." » "demand management control.", "demand management contract.", "demand management tools.", "debt management controls."
"case management activity." » "case management activities.", "case management facility.", "case management authority.", "waste management activity.", "change management activity.", "asset management activity."
"cash management centers." » "cash management control.", "cash management energy.", "cash management entity.", "asset management centers."
"land management based." » "land management board.", "land management issues.", "land management a."
"land management water." » "land management data.", "land management a.", "land management areas."
"flood management case." » "fund management case.", "flood 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 contracts.") OR ((((("land management water.") OR ("land management based."))) OR ("flood management case."))))) OR ((((("cash management centers.") OR ("case management activity."))) OR ("service management concepts."))))) OR ("demand management controls."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"risk management contracts.\") or (((((\"land management water.\") OR (\"land management based.\"))) or (\"flood management case.\"))))) or (((((\"cash management centers.\") or (\"case management activity.\"))) or (\"service management concepts.\"))))) or (\"demand management controls.\"))~".
• Removing quotes may allow a broader search: (((((( risk management contracts. ) or ((((( land management water. ) OR ( land management based. ))) or ( flood management case. ))))) or ((((( cash management centers. ) or ( case management activity. ))) or ( service management concepts. ))))) or ( demand management controls. ))~.
• Adding a wildcard symbol may retrieve word variants: (((((("risk management contracts.") or ((((("land management water.") OR ("land management based."))) or ("flood management case."))))) or ((((("cash management centers.") or ("case management activity."))) or ("service management concepts."))))) or ("demand management controls."))*.