kushiyaki vs roast beef

kushiyaki

noun
  • A Japanese technique for serving chicken or other foods on a skewer. 

roast beef

noun
  • A portion of roasted beef. 

  • A cut of beef intended for roasting. 

  • Beef cooked by roasting. 

  • A cut of beef that has been roasted. 

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