Chinese pidgin English vs pidgin English

Chinese pidgin English

name
  • An English-lexifier pidgin used along the Chinese coast from the 17th to the 19th centuries. 

pidgin English

noun
  • Any very basic English; broken English. 

  • Any English-lexifier pidgin. 

  • The Chinese pidgin English spoken in Canton and Hong Kong, later spreading throughout the Chinese and Southeast Asian coastal region. 

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