Hui vs Tsat

Hui

name
  • A Chinese lect spoken in Southern Anhui and neighbouring Zhejiang and Jiangxi. 

  • A surname from Chinese. 

noun
  • An ethnic group of China, distinguished by their practice of Islam, who speak Mandarin (or Dungan in Kyrgyzstan, Kazakhstan and Russia). 

Tsat

name
  • A Malayo-Polynesian language spoken near Sanya, Hainan, China by the Utsuls. 

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