Perhaps you should try some spelling variations:
"land management concepts." » "land management contracts."
"cash management controls." » "cash management control.", "cash management contracts.", "cash management contract.", "asset management controls."
"fire management energy." » "fire management entity.", "fire management centers.", "fire management agency.", "side management energy.", "zone management energy.", "finance management energy."
"demand management board." » "demand management case."
"city management work." » "city management network.", "city management framework.", "crop management work.", "security management work.", "facility management work."
"data management a." » "bank management a.", "basin management a.", "data management _."
"case management data." » "case management case.", "waste management data.", "change management data.", "asset management data."
"debt management how." » "debt management from.", "debt management _."
"chain management a." » "chain management _."

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 ((("fire management energy.") or ("city management work."))))) or ((((((("data management a.") OR ("chain management a."))) or ((("demand management board.") or ("debt management how."))))) or ("cash management controls."))))) or ("land management concepts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("case management data.") OR ((("fire management energy.") OR ("city management work."))))) OR ((((((("data management a.") OR ("chain management a."))) OR ((("demand management board.") OR ("debt management how."))))) OR ("cash management controls."))))) OR ("land management concepts.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"case management data.\") or (((\"fire management energy.\") or (\"city management work.\"))))) or (((((((\"data management a.\") OR (\"chain management a.\"))) or (((\"demand management board.\") or (\"debt management how.\"))))) or (\"cash management controls.\"))))) or (\"land management concepts.\"))".
• Removing quotes may allow a broader search: (((((( case management data. ) or ((( fire management energy. ) or ( city management work. ))))) or ((((((( data management a. ) OR ( chain management a. ))) or ((( demand management board. ) or ( debt management how. ))))) or ( cash management controls. ))))) or ( land management concepts. )).
• Adding a wildcard symbol may retrieve word variants: (((((("case management data.") or ((("fire management energy.") or ("city management work."))))) or ((((((("data management a.") OR ("chain management a."))) or ((("demand management board.") or ("debt management how."))))) or ("cash management controls."))))) or ("land management concepts."))*.