intertwine vs jigsaw

intertwine

verb
  • To twine something together. 

  • To become twined together; to become mutually involved. 

jigsaw

verb
  • To cut something using a jigsaw. 

noun
  • Something that can be compared to a jigsaw puzzle. 

  • A power saw with fine teeth and a narrow blade which can cut curves in wood or metal. 

  • A jigsaw puzzle. 

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