go up vs step on

go up

verb
  • Used other than figuratively or idiomatically: see go, up. 

  • To rise or increase in price, cost, or value. 

  • To be consumed by fire. 

  • To move upwards 

  • To be built or erected 

  • To forget lines or blocks during public performance. 

  • To appeal for a dismissal. 

step on

verb
  • Used other than figuratively or idiomatically: see step, on. 

  • to adulterate a drug for the purpose of increasing its bulk, and therefore its profit; to dilute, cut. 

How often have the words go up and step on occurred in a corpus of books? (source: Google Ngram Viewer )