build up vs run up

build up

verb
  • To accumulate, to pile up, to increase in stages. 

  • To close up by building. 

  • To strengthen. 

  • In solitaire card games, to place a card over another card of lower value. (e.g., place 5♦ over 4♣) 

  • To erect; to construct. 

run up

verb
  • To rise; to swell; to grow; to increase. 

  • To approach (an event or point in time). 

  • To accumulate (a debt). 

  • To thrust up, as anything long and slender. 

  • To make something, usually an item of clothing, very quickly. 

  • To take to a destination or before an authority. 

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

  • Of a bowler, to run, or walk up to the bowling crease in order to bowl a ball. 

  • To bring (a flag) to the top of its flag pole. 

  • To run (towards someone or something); to hasten to a destination. 

  • To erect hastily, as a building. 

  • To string up; to hang. 

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