go one better vs outstrip

go one better

verb
  • To outdo somebody; to do something that surpasses what came before. 

  • To take a bet and add another to it. 

outstrip

verb
  • To exceed or surpass (someone or something). 

  • To move more quickly than (someone or something) so as to outrun or leave it behind. 

How often have the words go one better and outstrip occurred in a corpus of books? (source: Google Ngram Viewer )