She vs yu

She

noun
  • A language of the Hmong-Mien language family spoken by the She people. 

  • An ethnic group in southern China. 

yu

noun
  • The letter Ю, ю. 

  • An ancient Chinese wine-bucket, often having a decorative cover. 

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