Perhaps you should try some spelling variations:
"waste management activity." » "waste management activities.", "waste management facility.", "waste management authority."
"crisis management case." » "risk management case.", "chain management case.", "crisis management a."
"demand management energy." » "demand management entity.", "demand management centers.", "demand management agency."
"fire management control." » "side management control.", "case management control.", "zone management control."
"cash management issues." » "asset management issues."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((((("crisis management case.") or ("waste management activity."))) or ((("fire management control.") or ("demand management energy."))))) or ((("cash management issues.") or ("debt management contract."))))) or ((("land management concepts.") OR ("land management contracts."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((((("crisis management case.") OR ("waste management activity."))) OR ((("fire management control.") OR ("demand management energy."))))) OR ((("cash management issues.") OR ("debt management contract."))))) OR ((("land management concepts.") OR ("land management contracts."))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((((\"crisis management case.\") or (\"waste management activity.\"))) or (((\"fire management control.\") or (\"demand management energy.\"))))) or (((\"cash management issues.\") or (\"debt management contract.\"))))) or (((\"land management concepts.\") OR (\"land management contracts.\"))))*".
• Removing quotes may allow a broader search: (((((((( crisis management case. ) or ( waste management activity. ))) or ((( fire management control. ) or ( demand management energy. ))))) or ((( cash management issues. ) or ( debt management contract. ))))) or ((( land management concepts. ) OR ( land management contracts. ))))*.