Perhaps you should try some spelling variations:
"farm management contract." » "farm management contracts.", "farm management control.", "cash management contract.", "bank management contract.", "data management contract."
"reform management reports." » "reform management reform.", "firm management reports."
"city management reports." » "city management reform.", "cash management reports.", "data management reports.", "case management reports."
"farm management centers." » "farm management concepts.", "farm management controls.", "farm management control.", "cash management centers.", "bank management centers.", "data management centers."

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("reform management reports.") or ("city management reports."))) or ((("farm management centers.") or ("farm management contract."))))~.
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• Adding a wildcard symbol may retrieve word variants: (((("reform management reports.") or ("city management reports."))) or ((("farm management centers.") or ("farm management contract."))))*.