Perhaps you should try some spelling variations:
"risk management controls." » "risk management control.", "risk management contracts.", "risk management contract."
"data management concepts." » "data management contracts.", "debt management concepts.", "cash management concepts.", "bank management concepts."
"reform management reports." » "reform management reform.", "farm management reports.", "firm management reports."
"city management readers." » "city management reviews.", "city management reform.", "city management review.", "cash management readers.", "crop management readers.", "security management readers."
"case management readers." » "case management reviews.", "case management reform.", "case management review.", "cash management readers.", "waste management readers.", "change management readers."
"risk management centers." » "risk management control.", "risk management water.", "risk management energy."

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 reports.") or ((("city management readers.") or ("case management readers."))))) or ((("data management concepts.") or ((("risk management centers.") or ("risk management controls."))))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("reform management reports.") OR ((("city management readers.") OR ("case management readers."))))) OR ((("data management concepts.") OR ((("risk management centers.") OR ("risk management controls."))))))*.
• Removing quotes may allow a broader search: (((( reform management reports. ) or ((( city management readers. ) or ( case management readers. ))))) or ((( data management concepts. ) or ((( risk management centers. ) or ( risk management controls. ))))))*.