landau vs tuk-tuk

landau

noun
  • A type of lightweight, four-wheeled carriage in which the front and back passenger seats face each other. 

  • A style of automobile based around the design of landau carriages. 

tuk-tuk

noun
  • A motorized rickshaw, especially Southeast Asia or India. 

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