minicab vs tro tro

minicab

noun

  • An unlicensed taxi. 

  • A small car used as a taxi (rather than a traditional black cab). 

verb

  • To drive a minicab. 

tro tro

noun

  • A minibus operating as a share taxi in Ghana. 

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