make a break for it vs run off

make a break for it

verb
  • To attempt to escape; to flee; to run away. 

run off

verb
  • To chase someone away. 

  • To operate by a particular energy or fuel source. 

  • To flee or depart quickly. 

  • to have diarrhea 

  • To make photocopies, or print. 

  • To write something quickly. 

  • To pour or spill off or over. 

  • To cause to flow away. 

How often have the words make a break for it and run off occurred in a corpus of books? (source: Google Ngram Viewer )