cruller vs lokma

cruller

noun
  • A donut in the form of a twisted ring. 

lokma

noun
  • A pastry made of fried dough soaked in sugar syrup or honey and cinnamon, typically shaped into a ring or ball. (used especially of the Turkish variant of this pastry) 

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