dragnet vs pay off

dragnet

verb
  • To drag a net across the bottom of a body of water. 

  • To make heightened efforts to catch a suspect. 

noun
  • Heightened efforts by law-enforcement personnel to capture suspects. 

  • A net dragged across the bottom of a body of water. 

pay off

verb
  • To fall to leeward, as the head of a vessel under sail. 

  • To bribe, especially to deter oversight. 

  • To pay back; to repay. 

  • To pay back (repay, pay off) the entirety of a loan, thereby effecting the release of a lien on. 

  • To become worthwhile; to produce a net benefit. 

How often have the words dragnet and pay off occurred in a corpus of books? (source: Google Ngram Viewer )