dragnet vs hand net

dragnet

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

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

verb
  • To make heightened efforts to catch a suspect. 

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

hand net

noun
  • A small net that is equipped with a handle and attached to a rim so that the net forms a pouch. This kind of net is used, eg, for trapping butterflies or individual fish. 

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