Perhaps you should try some spelling variations:
"land management entity." » "land management energy.", "land management activity.", "land management quality."
"asset management contracts." » "debt management contracts."
"farm management based." » "farm management case.", "farm management board.", "farm management issues.", "data management based.", "forest management based.", "chain management based."
"bank management control." » "basin management control.", "risk management control.", "demand management control."
"firm management data." » "fire management data.", "city management data.", "care management data.", "firm management a.", "firm management case."

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: (((((((((("bank management control.") OR ("cash management control."))) OR ("asset management contracts."))) OR ("land management entity."))) OR ((("firm management data.") OR ("farm management based."))))) OR ("reform management tools."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((((((\"bank management control.\") OR (\"cash management control.\"))) or (\"asset management contracts.\"))) or (\"land management entity.\"))) or (((\"firm management data.\") or (\"farm management based.\"))))) or (\"reform management tools.\"))~".
• Removing quotes may allow a broader search: (((((((((( bank management control. ) OR ( cash management control. ))) or ( asset management contracts. ))) or ( land management entity. ))) or ((( firm management data. ) or ( farm management based. ))))) or ( reform management tools. ))~.
• Adding a wildcard symbol may retrieve word variants: (((((((((("bank management control.") OR ("cash management control."))) or ("asset management contracts."))) or ("land management entity."))) or ((("firm management data.") or ("farm management based."))))) or ("reform management tools."))*.