dosa vs griddlecake

dosa

noun
  • A type of thin south Indian pancake made from fermented lentils and rice blended with water, typically served with chutney or sambar. 

griddlecake

noun
  • Any of various forms of small pancake made from a spoonful of batter cooked on a griddle 

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