get on to vs look to

get on to

verb
  • Used other than figuratively or idiomatically: see get on, to. 

  • To contact (someone) in order to raise or discuss a certain matter. 

  • To progress to; to start working on. 

look to

verb
  • Used other than figuratively or idiomatically: see look, to. 

  • To intend to; to prepare to. 

  • To take care of. 

  • To seek inspiration or advice or reward from someone. 

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