break free vs run away

break free

verb
  • To liberate oneself; to free oneself; to become free (from or of something or someone). 

run away

verb
  • 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. 

  • To flee by running. 

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