Perhaps you should try some spelling variations:
"land management controls." » "land management control.", "land management contract.", "land management tools."
"reform management readers." » "reform management centers.", "reform management reviews.", "reform management reports.", "farm management readers.", "firm management readers."
"oxford management reform." » "records management reform.", "flood management reform.", "farm management reform."
"fund management concepts." » "demand management concepts."

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

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