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

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

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