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

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("oxford management reform.") or ((("demand management contract.") OR ("land management contract."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("oxford management reform.") OR ((("demand management contract.") OR ("land management contract.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"oxford management reform.\") or (((\"demand management contract.\") OR (\"land management contract.\"))))".
• Removing quotes may allow a broader search: (( oxford management reform. ) or ((( demand management contract. ) OR ( land management contract. )))).
• Adding a wildcard symbol may retrieve word variants: (("oxford management reform.") or ((("demand management contract.") OR ("land management contract."))))*.