brush off vs look at

brush off

verb
  • To disregard (something), to dismiss or ignore (someone), as unimportant. 

  • Used other than figuratively or idiomatically: see brush, off. To remove something with a brush. 

look at

verb
  • to face (to be presented or confronted with; to have in prospect) 

  • To consider. 

  • To observe or watch (something). 

  • To study (something) visually. 

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