set back vs stall for time

set back

verb
  • To delay or obstruct. 

  • To remove from or allow distance. 

  • To install or position behind a boundary or surface, or in a recess. 

  • To cost money. 

  • To reverse, go backwards. 

stall for time

verb
  • To intentionally cause a delay; to stop; to wait. 

How often have the words set back and stall for time occurred in a corpus of books? (source: Google Ngram Viewer )