clench vs draw together

clench

noun
  • A tight grip. 

  • A local chapter of the Church of the SubGenius parody religion. 

  • A seal that is applied to formed thin-wall bushings. 

verb
  • To close tightly. 

  • To grip or hold fast. 

draw together

verb
  • To cause (someone) to seek emotional support from each other; to cause to pull together or come together. 

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