Perhaps you should try some spelling variations:
"city management functions." » "city management operations.", "city management practices.", "city management education.", "data management functions.", "crop management functions.", "security management functions."
"cash management concepts." » "cash management contracts."
"asset management control." » "asset management contracts."
"demand management centers." » "demand management controls.", "demand management water.", "demand management contracts.", "land management centers."
"debt management centers." » "debt management controls.", "debt management water.", "debt management contracts."
"city management quality." » "city management capacity.", "data management quality.", "crop management quality.", "security management quality."
"case management energy." » "case management agency.", "waste management energy.", "change management energy.", "chain management energy."
"demand management entity." » "land management entity.", "demand management activity.", "demand management action.", "demand management authority."

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: (((((((("city management quality.") OR ("city management functions."))) OR ("case management energy."))) OR ((((((("demand management centers.") OR ("demand management entity."))) OR ("debt management centers."))) OR ("asset management control."))))) OR ("cash management concepts."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((((\"city management quality.\") or (\"city management functions.\"))) or (\"case management energy.\"))) or (((((((\"demand management centers.\") OR (\"demand management entity.\"))) or (\"debt management centers.\"))) or (\"asset management control.\"))))) or (\"cash management concepts.\"))~".
• Removing quotes may allow a broader search: (((((((( city management quality. ) or ( city management functions. ))) or ( case management energy. ))) or ((((((( demand management centers. ) OR ( demand management entity. ))) or ( debt management centers. ))) or ( asset management control. ))))) or ( cash management concepts. ))~.
• Adding a wildcard symbol may retrieve word variants: (((((((("city management quality.") or ("city management functions."))) or ("case management energy."))) or ((((((("demand management centers.") OR ("demand management entity."))) or ("debt management centers."))) or ("asset management control."))))) or ("cash management concepts."))*.