close one's eyes vs look down

close one's eyes

verb
  • Used other than figuratively or idiomatically: see close, one's, eyes. 

  • To ignore something. 

  • To sleep. 

look down

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

  • To decrease in value. 

  • To fix one's gaze upon (someone) until they look away; to stare down. 

  • To lower one's eyes; to direct one's look downwards. 

How often have the words close one's eyes and look down occurred in a corpus of books? (source: Google Ngram Viewer )