Perhaps you should try some spelling variations:
"oxford management controls." » "oxford management contract.", "oxford management tools.", "oxford management functions.", "reform management controls.", "records management controls.", "fund management controls."
"land management water." » "land management case.", "land management data.", "land management based."
"farm management control." » "cash management control.", "bank management control.", "data management control."
"care management contracts." » "case management contracts.", "cash management contracts.", "fire management contracts."
"zone management concepts." » "bank management concepts.", "case management concepts.", "change management concepts."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((("farm management control.") or ("land management water."))) or ((("care management contracts.") or ("zone management concepts."))))) or ("oxford management controls."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("farm management control.") OR ("land management water."))) OR ((("care management contracts.") OR ("zone management concepts."))))) OR ("oxford management controls.")).
• Removing quotes may allow a broader search: (((((( farm management control. ) or ( land management water. ))) or ((( care management contracts. ) or ( zone management concepts. ))))) or ( oxford management controls. )).
• Adding a wildcard symbol may retrieve word variants: (((((("farm management control.") or ("land management water."))) or ((("care management contracts.") or ("zone management concepts."))))) or ("oxford management controls."))*.