exchange views about vs straighten out

exchange views about

straighten out

verb
  • To make straight. 

  • To tidy, neaten, or organize. 

  • To correct or rectify. 

  • To eliminate confusion from or concerning. 

  • To correct; to stop doing something wrong. 

How often have the words exchange views about and straighten out occurred in a corpus of books? (source: Google Ngram Viewer )