Perhaps you should try some spelling variations:
"resources management contract." » "resource management contract."
"chain management controls." » "chain management tools.", "chain management functions.", "chain management protocols.", "cash management controls."
"finance management contracts." » "financial management contracts."
"demand management _." » "land management _.", "debt management _."
"city management issues." » "city management case.", "cash management issues.", "case management issues.", "crop management issues."
"data management issues." » "data management case.", "debt management issues.", "cash management issues.", "bank management issues."
"waste management energy." » "waste management entity.", "waste management centers.", "waste management agency.", "debt management energy."
"asset management concepts." » "debt management concepts."
"firm management a." » "farm management a.", "fire management a.", "care management a."

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 ((("city management issues.") OR ("data management issues."))))) or ((("fisheries management control.") or ("resources management contract."))))) or ("waste management energy."))) or ((("demand management _.") or ("asset management concepts."))))) or ((("finance management contracts.") or ("chain management controls."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((((((("firm management a.") OR ((("city management issues.") OR ("data management issues."))))) OR ((("fisheries management control.") OR ("resources management contract."))))) OR ("waste management energy."))) OR ((("demand management _.") OR ("asset management concepts."))))) OR ((("finance management contracts.") OR ("chain management controls.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((((((\"firm management a.\") or (((\"city management issues.\") OR (\"data management issues.\"))))) or (((\"fisheries management control.\") or (\"resources management contract.\"))))) or (\"waste management energy.\"))) or (((\"demand management _.\") or (\"asset management concepts.\"))))) or (((\"finance management contracts.\") or (\"chain management controls.\"))))".
• Removing quotes may allow a broader search: (((((((((( firm management a. ) or ((( city management issues. ) OR ( data management issues. ))))) or ((( fisheries management control. ) or ( resources management contract. ))))) or ( waste management energy. ))) or ((( demand management _. ) or ( asset management concepts. ))))) or ((( finance management contracts. ) or ( chain management controls. )))).
• Adding a wildcard symbol may retrieve word variants: (((((((((("firm management a.") or ((("city management issues.") OR ("data management issues."))))) or ((("fisheries management control.") or ("resources management contract."))))) or ("waste management energy."))) or ((("demand management _.") or ("asset management concepts."))))) or ((("finance management contracts.") or ("chain management controls."))))*.