Chin vs Zo

Chin

name
  • Synonym of Zo: a language of Burma. 

  • A surname from Hakka. 

  • A hamlet in Alberta, Canada. 

  • A tribe in Burma. 

  • A state of Burma 

Zo

name
  • A language spoken in Myanmar and India, especially in Chin State, Mizoram and Manipur, and adjoining parts of Bangladesh. 

noun
  • An indigenous people of Burma (Myanmar) and north-east India. 

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