Perhaps you should try some spelling variations:
"demand management a." » "debt management a.", "demand management _."
"waste management control." » "debt management control."
"case management from." » "change management from.", "asset management from.", "basin management from."
"city management case." » "data management case.", "crop management case.", "security management case."
"cash management contract." » "asset management contract."
"cash management contracts." » "asset management contracts."

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

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