Perhaps you should try some spelling variations:
"U.S. secretary of state" » "U.S. secretaria of state", "U.S. secretario of state", "U.S. secretas of state", "U.S. secretasry of state", "U.S. secretory of state", "U.S. secretosry of state", "U.S. secretoary of state", "U.S. secretosary of state", "U.S. secretasary of state"
"U.S. secretoary of state" » "U.S. secretora of state", "U.S. secretooary of state", "U.S. secretosoary of state", "U.S. secretasoary 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"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("U.S. secretary of state") OR ("U.S. secretoary 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. secretary of state\") OR (\"U.S. secretoary of state\"))) OR (((\"U.S. secreta of state\") OR (\"U.S. secret of state\"))))".
• Removing quotes may allow a broader search: (((( U.S. secretary of state ) OR ( U.S. secretoary of state ))) OR ((( U.S. secreta of state ) OR ( U.S. secret of state )))).
• Adding a wildcard symbol may retrieve word variants: (((("U.S. secretary of state") OR ("U.S. secretoary of state"))) OR ((("U.S. secreta of state") OR ("U.S. secret of state"))))*.