contribute to vs make for

contribute to

make for

verb
  • To set out to go (somewhere); to move towards. 

  • Used other than figuratively or idiomatically: see make, for. 

  • To confirm, favour, strengthen (an opinion, theory, etc.). 

  • To tend to produce or result in. 

How often have the words contribute to and make for occurred in a corpus of books? (source: Google Ngram Viewer )