avert vs turn away

avert

verb
  • To turn aside or away. 

  • To ward off, or prevent, the occurrence or effects of. 

turn away

verb
  • To avert or deflect something. 

  • To rotate the body or head so as not to face someone or something. 

  • To refuse to admit someone. 

  • To bend or turn from a fixed course. 

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