Hui vs Huihui

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). 

Huihui

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