bush taxi vs taxicab

bush taxi

noun
  • A share taxi in parts of Africa. 

taxicab

noun
  • a vehicle that passengers hire to take them between locations of their choice, the fare being calculated with a taximeter; a taxi or cab 

verb
  • To travel by taxicab. 

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