Perhaps you should try some spelling variations:
"land management concepts." » "land management contracts."
"cash management contract." » "cash management contracts.", "asset management contract."
"waste management control." » "waste management contracts.", "debt management control."
"basin management issues." » "chain management issues.", "business management issues.", "crisis management issues."
"case management data." » "change management data.", "asset management data.", "chain management data."
"data management a." » "debt management a.", "bank management a.", "demand management a.", "data management _."
"fire management case." » "side management case.", "zone management case.", "city 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: (((((("case management data.") or ((("waste management control.") or ("fire management case."))))) or ((((("data management a.") or ("basin management issues."))) or ("cash management contract."))))) or ("land management concepts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("case management data.") OR ((("waste management control.") OR ("fire management case."))))) OR ((((("data management a.") OR ("basin management issues."))) OR ("cash management contract."))))) OR ("land management concepts.")).
• Removing quotes may allow a broader search: (((((( case management data. ) or ((( waste management control. ) or ( fire management case. ))))) or ((((( data management a. ) or ( basin management issues. ))) or ( cash management contract. ))))) or ( land management concepts. )).
• Adding a wildcard symbol may retrieve word variants: (((((("case management data.") or ((("waste management control.") or ("fire management case."))))) or ((((("data management a.") or ("basin management issues."))) or ("cash management contract."))))) or ("land management concepts."))*.