get the better of vs sweep someone off their feet

get the better of

verb
  • To overwhelm or overcome 

  • To gain an advantage over. 

  • To trick or con. 

sweep someone off their feet

verb
  • To overwhelm. 

  • To seduce someone romantically. 

How often have the words get the better of and sweep someone off their feet occurred in a corpus of books? (source: Google Ngram Viewer )