harissa vs olio

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. 

olio

noun
  • A rich, thick, Spanish stew consisting of meat and vegetables. 

  • A collection of various musical, theatrical or other artistic works; a miscellany. 

  • A medley or mixture; a hotchpotch. 

  • Vaudeville or similar miscellaneous musical or theatrical entertainment skits presented between the main acts of burlesque or minstrel shows. 

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