Perhaps you should try some spelling variations:
"land management centers." » "land management concepts.", "land management controls.", "land management water."
"fund management control." » "fund management contracts.", "demand management control."
"oxford management reform." » "reform management reform.", "records management reform.", "farm 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 ("flood management reports."))) or ((("land management centers.") or ("fund management control."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("oxford management reform.") OR ("flood management reports."))) OR ((("land management centers.") OR ("fund management control.")))).
• Removing quotes may allow a broader search: (((( oxford management reform. ) or ( flood management reports. ))) or ((( land management centers. ) or ( fund management control. )))).
• Adding a wildcard symbol may retrieve word variants: (((("oxford management reform.") or ("flood management reports."))) or ((("land management centers.") or ("fund management control."))))*.