act on vs dragnet

act on

verb
  • To take action against something. 

  • To affect something. 

  • To act decisively on the basis of information received or deduced. 

  • Το act accordingly to a (usually sublimated) desire or impulse. 

dragnet

verb
  • To make heightened efforts to catch a suspect. 

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

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

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

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