Perhaps you should try some spelling variations:
"demand management controls." » "demand management control.", "demand management contracts.", "demand management contract.", "debt management controls."
"land management controls." » "land management control.", "land management contracts.", "land management contract."
"oxford management readers." » "oxford management centers.", "oxford management reviews.", "oxford management reports.", "reform management readers.", "records management readers.", "fund management readers."
"oxford management reform." » "reform management reform.", "records management reform.", "fund management reform."

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