break free vs get away

break free

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

get away

verb
  • To avoid capture; to escape; to flee (from). 

  • To take a break from one's present circumstances; to journey (to), especially on holiday. 

  • To slip from one's control. 

  • To move away (from). 

  • To start moving; to depart. 

intj
  • Expressing disbelief. 

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