interfuse vs screw up

interfuse

verb
  • To fuse or blend together 

screw up

verb
  • To twist into a contorted state. 

  • To blunder; to make a mistake. 

  • To raise or summon up. 

  • To tighten or secure with screws. 

  • To make a mess of; to ruin. 

  • To raise (rent, fees, etc.) to extortionate levels. 

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