get away vs sneak away

get away

intj
  • Expressing disbelief. 

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

  • To start moving; to depart. 

sneak away

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