dragon lady vs spitfire

dragon lady

noun
  • An East Asian woman who is stereotypically strong, deceitful, domineering, or mysterious. 

spitfire

noun
  • A person with a fiery temper, someone easily provoked to anger, especially a woman or girl. 

  • A cannon. 

How often have the words dragon lady and spitfire occurred in a corpus of books? (source: Google Ngram Viewer )