three-wheeler vs tuk-tuk

three-wheeler

noun
  • An autorickshaw, tuk-tuk, trishaw. 

  • A car, cycle or motorbike having three wheels. 

tuk-tuk

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

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