anguish vs fall on

anguish

verb
  • To suffer pain. 

  • To cause to suffer pain. 

noun
  • Extreme pain, either of body or mind; excruciating distress. 

fall on

verb
  • To experience; to suffer; to fall upon. 

  • To be assigned to; to acquire a new responsibility, duty or burden. 

  • To occur on a particular day. 

  • Of the eyes or gaze: to alight upon. 

How often have the words anguish and fall on occurred in a corpus of books? (source: Google Ngram Viewer )