blini vs lavash

blini

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

lavash

noun
  • A soft, thin flatbread made with flour, water, yeast, and salt, baked in a tandoor. Toasted sesame seeds and/or poppy seeds are sometimes sprinkled on it before baking. Traditionally made in Armenia and other countries of the Caucasus and the Middle East. 

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