blini vs flapjack

blini

noun
  • A small pancake, of Russian origin, made from buckwheat flour; traditionally served with melted butter, sour cream and caviar or smoked salmon. 

flapjack

noun
  • A pancake. 

  • A bar made of (though not limited to) rolled oats, butter, golden syrup, and brown sugar, baked in a tray. 

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