Perhaps you should try some spelling variations:
"waste management entity." » "waste management energy.", "waste management activity.", "waste management quality.", "debt management entity."
"data management water." » "data management based.", "data management areas.", "data management work.", "debt management water.", "cash management water.", "demand management water."
"basin management a." » "cash management a.", "chain management a.", "business management a.", "basin management _."
"asset management control." » "debt management control."
"case management contracts." » "cash management contracts.", "change management contracts.", "chain management contracts."
"data management case." » "debt management case.", "cash management case.", "demand management case."
"bank management concepts." » "risk management concepts.", "cash management concepts.", "demand management concepts."

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: (((((("waste management entity.") OR ("case management contracts."))) OR ((((((((("data management water.") OR ("data management case."))) OR ("basin management a."))) OR ("land management data."))) OR ("asset management control."))))) OR ("bank management concepts."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"waste management entity.\") or (\"case management contracts.\"))) or (((((((((\"data management water.\") OR (\"data management case.\"))) or (\"basin management a.\"))) or (\"land management data.\"))) or (\"asset management control.\"))))) or (\"bank management concepts.\"))~".
• Removing quotes may allow a broader search: (((((( waste management entity. ) or ( case management contracts. ))) or ((((((((( data management water. ) OR ( data management case. ))) or ( basin management a. ))) or ( land management data. ))) or ( asset management control. ))))) or ( bank management concepts. ))~.
• Adding a wildcard symbol may retrieve word variants: (((((("waste management entity.") or ("case management contracts."))) or ((((((((("data management water.") OR ("data management case."))) or ("basin management a."))) or ("land management data."))) or ("asset management control."))))) or ("bank management concepts."))*.