Chinese Pidgin English vs pidgin English

Chinese Pidgin English

noun
  • An English-based pidgin formerly spoken in Guangzhou and other ports in China. 

pidgin English

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

  • Any very basic English; broken English. 

  • Any English-lexifier pidgin. 

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