Cheddar vs kashkaval

Cheddar

noun
  • Cheddar cheese. 

name
  • A village in Somerset, England famous for its cheese, and also for its gorge, caves and remains of early man found in them. 

kashkaval

noun
  • A group of various traditional yellow cheeses from Turkey and the Balkans. 

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