avoid vs go at

avoid

verb
  • To defeat or evade; to invalidate. 

  • To stay out of the way of (something harmful). 

  • To try not to do something or to have something happen 

  • to keep away from; to keep clear of; to stay away from 

  • To try not to meet or communicate with (a person); to shun 

  • To make void, to annul; to refute (especially a contract). 

go at

verb
  • To initiate an attack on or an argument with. 

  • Used other than figuratively or idiomatically: see go, at. 

  • To try to solve a problem a specific way; to undertake a task. 

How often have the words avoid and go at occurred in a corpus of books? (source: Google Ngram Viewer )