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 water." » "case management case.", "case management data.", "case management based.", "waste management water.", "change management water.", "asset management water."
"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.

• 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 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 water. ) or ( firm management a. ))))) or ( reform management contract. ))~.
• Adding a wildcard symbol may retrieve word variants: (((((("cash management control.") or ((("land management quality.") or ("land management activity."))))) or ((("case management water.") or ("firm management a."))))) or ("reform management contract."))*.