chandoo vs codeine

chandoo

noun
  • An extract or preparation of opium, used in China and India for smoking. 

codeine

noun
  • An addictive alkaloid narcotic derived from opium and used as a hypnotic, analgesic and antitussive; often mixed with aspirin etc. 

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