hards vs trawl

hards

noun
  • The short coarser fibers of flax or hemp; tow. 

trawl

noun
  • A long fishing line having many short lines bearing hooks attached to it; a setline. 

  • A net or dragnet used for trawling. 

verb
  • To take (fish or other marine animals) with a trawl. 

  • To fish from a slow-moving boat. 

  • To make an exhaustive search for something within a defined area. 

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