Perhaps you should try some spelling variations:
"reform management contractss." » "reform management contracts.", "reform management contractors.", "reform management contract.", "farm management contractss."
"land management activity." » "land management activities.", "land management facility.", "land management authority.", "land management _ctivity."
"cash management control." » "cash management contracts.", "asset management control."
"land management quality." » "land management capacity."
"case management water." » "case management case.", "case management based.", "case management areas.", "change management water.", "asset management water.", "chain management water."
"waste management water." » "waste management case.", "waste management based.", "waste management areas.", "debt management water."
"case management data." » "change management data.", "asset management data.", "chain management data.", "case management case."
"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 ("case management data."))) OR ("waste management water."))) OR ("firm management a."))))) OR ("reform management contractss."))~.
• 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 water.\") OR (\"case management data.\"))) or (\"waste management water.\"))) or (\"firm management a.\"))))) or (\"reform management contractss.\"))~".
• Removing quotes may allow a broader search: (((((( cash management control. ) or ((( land management quality. ) or ( land management activity. ))))) or ((((((( case management water. ) OR ( case management data. ))) or ( waste management water. ))) or ( firm management a. ))))) or ( reform management contractss. ))~.
• Adding a wildcard symbol may retrieve word variants: (((((("cash management control.") or ((("land management quality.") or ("land management activity."))))) or ((((((("case management water.") OR ("case management data."))) or ("waste management water."))) or ("firm management a."))))) or ("reform management contractss."))*.