Perhaps you should try some spelling variations:
"land management activity." » "land management activities.", "land management facility.", "land management authority.", "land management _ctivity."
"reform management contract." » "reform management contracts.", "farm management contract."
"cash management control." » "cash management contracts.", "asset management control."
"land management quality." » "land management capacity."
"case management issues." » "case management case.", "waste management issues.", "asset management issues.", "chain management issues."
"change management issues." » "change management case.", "chain management issues.", "finance management issues.", "waste management issues."
"debt management water." » "debt management case.", "debt management data.", "debt management based."
"firm management a." » "farm management a.", "fire management a.", "city management a.", "firm management _."

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

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