Perhaps you should try some spelling variations:
"city management concepts." » "city management contracts.", "cash management concepts.", "data management concepts.", "case management concepts."
"waste management readers." » "waste management centers.", "waste management reviews.", "waste management reports.", "debt management readers."
"oxford management control." » "oxford management contracts.", "records management control.", "fund management control.", "flood management control."
"reform management reform." » "farm management reform.", "firm management reform."

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 reform.") or ((("waste management readers.") or ("city management concepts."))))) or ("oxford management control."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("reform management reform.") OR ((("waste management readers.") OR ("city management concepts."))))) OR ("oxford management control.")).
• Removing quotes may allow a broader search: (((( reform management reform. ) or ((( waste management readers. ) or ( city management concepts. ))))) or ( oxford management control. )).
• Adding a wildcard symbol may retrieve word variants: (((("reform management reform.") or ((("waste management readers.") or ("city management concepts."))))) or ("oxford management control."))*.