donburi vs vichyssoise

donburi

noun
  • A Japanese rice bowl dish consisting of fish, meat, vegetables or other ingredients served together over rice. 

vichyssoise

noun
  • A thick, creamy soup made from potato, leeks, onions, and chicken stock, and normally served cold. 

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