Perhaps you should try some spelling variations:
"firm management activity." » "firm management activities.", "firm management facility.", "firm management authority.", "fire management activity.", "city management activity.", "fishery management activity."
"care management activity." » "care management activities.", "care management facility.", "care management authority.", "case management activity.", "fire management activity.", "change management activity."
"bank management concepts." » "bank management contracts.", "basin management concepts.", "risk management concepts.", "change management concepts."
"demand management centers." » "demand management controls.", "demand management water.", "demand management energy.", "land management centers.", "debt management centers."
"farm management control." » "farm management contracts.", "data management control.", "forest management control.", "chain management control."
"cash management entity." » "cash management energy.", "cash management quality.", "cash management action.", "asset management entity."

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 activity.") OR ("care management activity."))) or ("cash management entity."))) or ((("demand management centers.") or ("farm management control."))))) or ("bank management concepts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((((("firm management activity.") OR ("care management activity."))) OR ("cash management entity."))) OR ((("demand management centers.") OR ("farm management control."))))) OR ("bank management concepts."))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((((\"firm management activity.\") OR (\"care management activity.\"))) or (\"cash management entity.\"))) or (((\"demand management centers.\") or (\"farm management control.\"))))) or (\"bank management concepts.\"))*".
• Removing quotes may allow a broader search: (((((((( firm management activity. ) OR ( care management activity. ))) or ( cash management entity. ))) or ((( demand management centers. ) or ( farm management control. ))))) or ( bank management concepts. ))*.