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.", "fund management controls."
"land management readers." » "land management centers.", "land management reviews.", "land management reform."
"demand management readers." » "demand management centers.", "demand management reviews.", "demand management reform.", "debt management readers."
"oxford management contracts." » "reform management contracts.", "records management contracts.", "fund management contracts."

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: (((("land management readers.") OR ("demand management readers."))) OR ((("oxford management controls.") OR ("oxford management contracts."))))~.
• Removing quotes may allow a broader search: (((( land management readers. ) or ( demand management readers. ))) or ((( oxford management controls. ) or ( oxford management contracts. ))))~.
• Adding a wildcard symbol may retrieve word variants: (((("land management readers.") or ("demand management readers."))) or ((("oxford management controls.") or ("oxford management contracts."))))*.