Perhaps you should try some spelling variations:
"city management based." » "city management case.", "city management board.", "city management issues.", "crop management based.", "security management based.", "facility management based."
"asset management concepts." » "debt management concepts."
"case management data." » "waste management data.", "change management data.", "basin management data.", "case management case."
"data management a." » "debt management a.", "bank management a.", "demand management a.", "data management _."
"firm management contracts." » "farm management contracts.", "fire management contracts.", "care management contracts."

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

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