pidgin English vs terminology

pidgin English

noun
  • Any English-lexifier pidgin. 

  • Any very basic English; broken English. 

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

terminology

noun
  • A treatise on terms, especially those used in a specialised field. 

  • The set of terms actually used in any business, art, science, or the like; nomenclature; technical terms. 

  • The scientific study of such terms. 

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