Perhaps you should try some spelling variations:
"oxford management controls." » "oxford management control.", "oxford management contract.", "oxford management tools.", "reform management controls.", "records management controls.", "road management controls."
"farm management energy." » "farm management entity.", "farm management centers.", "farm management agency.", "cash management energy.", "bank management energy.", "data management energy."
"chain management contracts." » "cash management contracts."
"flood management case." » "land management case.", "flood management a."
"care management concepts." » "case management concepts.", "cash management concepts.", "fire management concepts."
"fund management data." » "fund management a.", "land management data.", "demand management data."
"firm management concepts." » "fire management concepts.", "city management concepts.", "fishery management concepts."

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: (((((("chain management contracts.") OR ((("fund management data.") OR ("flood management case."))))) OR ((((("firm management concepts.") OR ("care management concepts."))) OR ("farm management energy."))))) OR ("oxford management controls."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"chain management contracts.\") or (((\"fund management data.\") or (\"flood management case.\"))))) or (((((\"firm management concepts.\") OR (\"care management concepts.\"))) or (\"farm management energy.\"))))) or (\"oxford management controls.\"))~".
• Removing quotes may allow a broader search: (((((( chain management contracts. ) or ((( fund management data. ) or ( flood management case. ))))) or ((((( firm management concepts. ) OR ( care management concepts. ))) or ( farm management energy. ))))) or ( oxford management controls. ))~.
• Adding a wildcard symbol may retrieve word variants: (((((("chain management contracts.") or ((("fund management data.") or ("flood management case."))))) or ((((("firm management concepts.") OR ("care management concepts."))) or ("farm management energy."))))) or ("oxford management controls."))*.