glimpse vs look at

glimpse

verb
  • To see or view briefly or incompletely. 

  • To appear by glimpses. 

noun
  • A brief look, glance, or peek. 

  • A sudden flash. 

  • A faint idea; an inkling. 

look at

verb
  • To observe or watch (something). 

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

  • To consider. 

  • To study (something) visually. 

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