Dorothy bag vs clutch bag

Dorothy bag

noun
  • A woman’s handbag gathered at the top by a drawstring whose loops are used as a handle; traditionally used by bridesmaids to carry confetti 

clutch bag

noun
  • A small handbag without a shoulder strap, designed to be held in the hand. 

How often have the words Dorothy bag and clutch bag occurred in a corpus of books? (source: Google Ngram Viewer )