harissa vs vichyssoise

harissa

noun
  • A traditional Armenian dish; a kind of homogeneous porridge made of previously stewed and boned chicken and coarsely ground soaked wheat. 

  • A North African spice mix, containing chillis, garlic and salt, used as both a condiment and an ingredient. 

vichyssoise

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

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