do a bunk vs run away

do a bunk

verb
  • To escape or flee, especially under incriminating circumstances. 

run away

verb
  • To flee by running. 

  • To leave home, or other place of residence, usually unannounced, or to make good on a threat, with such action usually performed by a child or juvenile. 

  • To become a runaway. 

How often have the words do a bunk and run away occurred in a corpus of books? (source: Google Ngram Viewer )