bring on vs restrain

bring on

verb
  • To cause. 

  • To pose a challenge or threat; to attack; to compete aggressively. 

  • To make something appear, as on a stage or a place of competition. 

restrain

verb
  • To strain again. 

  • To control or keep in check. 

  • To deprive of liberty. 

  • To restrict or limit. 

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