face up to vs shun

face up to

verb
  • To confront a condition or situation, typically one that is unpleasant or uncomfortable. 

shun

verb
  • To escape (a threatening evil, an unwelcome task etc). 

  • To screen, hide. 

  • To avoid, especially persistently; ostracize. 

  • To shove, push. 

How often have the words face up to and shun occurred in a corpus of books? (source: Google Ngram Viewer )