handbill vs rawl plug

handbill

noun
  • A pruning hook. 

  • A chopping instrument; billhook. 

  • A loose printed sheet, to be distributed by hand. 

rawl plug

noun
  • A wall plug; a screw anchor. 

How often have the words handbill and rawl plug occurred in a corpus of books? (source: Google Ngram Viewer )