Perhaps you should try some spelling variations:
"U.S. secretasry of state" » "U.S. secretary of state", "U.S. secretas of state", "U.S. secretassry of state", "U.S. secretosry of state", "U.S. secretossry of state", "U.S. secretoasry of state", "U.S. secretosasry of state", "U.S. secretasasry of state"
"U.S. secreta of state" » "U.S. secretas of state", "U.S. secreto of state", "U.S. secretos of state", "U.S. secretoa of state", "U.S. secretosa of state", "U.S. secretasa of state"
"U.S. secret of state" » "U.S. secreto of state", "U.S. secretos of state", "U.S. secretas of state"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("U.S. secretasry of state") OR ((("U.S. secreta of state") OR ("U.S. secret of state"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"U.S. secretasry of state\") OR (((\"U.S. secreta of state\") OR (\"U.S. secret of state\"))))".
• Removing quotes may allow a broader search: (( U.S. secretasry of state ) OR ((( U.S. secreta of state ) OR ( U.S. secret of state )))).
• Adding a wildcard symbol may retrieve word variants: (("U.S. secretasry of state") OR ((("U.S. secreta of state") OR ("U.S. secret of state"))))*.