Perhaps you should try some spelling variations:
"fisheries management control." » "resources management control."
"chain management controls." » "chain management contract.", "chain management tools.", "chain management functions.", "cash management controls."
"waste management entity." » "waste management energy.", "waste management activity.", "waste management quality."
"firm management a." » "farm management a.", "fire management a.", "city management a."
"data management case." » "cash management case.", "bank management case.", "demand management case."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((((((("firm management a.") or ("data management case."))) or ("fisheries management control."))) or ("waste management entity."))) or ((("land management _.") or ((("asset management concepts.") OR ("debt management concepts."))))))) or ((("financial management contracts.") or ("chain management controls."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((((((("firm management a.") OR ("data management case."))) OR ("fisheries management control."))) OR ("waste management entity."))) OR ((("land management _.") OR ((("asset management concepts.") OR ("debt management concepts."))))))) OR ((("financial management contracts.") OR ("chain management controls.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((((((\"firm management a.\") or (\"data management case.\"))) or (\"fisheries management control.\"))) or (\"waste management entity.\"))) or (((\"land management _.\") or (((\"asset management concepts.\") OR (\"debt management concepts.\"))))))) or (((\"financial management contracts.\") or (\"chain management controls.\"))))".
• Removing quotes may allow a broader search: (((((((((( firm management a. ) or ( data management case. ))) or ( fisheries management control. ))) or ( waste management entity. ))) or ((( land management _. ) or ((( asset management concepts. ) OR ( debt management concepts. ))))))) or ((( financial management contracts. ) or ( chain management controls. )))).
• Adding a wildcard symbol may retrieve word variants: (((((((((("firm management a.") or ("data management case."))) or ("fisheries management control."))) or ("waste management entity."))) or ((("land management _.") or ((("asset management concepts.") OR ("debt management concepts."))))))) or ((("financial management contracts.") or ("chain management controls."))))*.