grappling vs in contention

grappling

noun
  • A grappling hook or grappling iron. 

  • An act in which something is grappled or grappled with. 

  • A small anchor; a grapnel. 

in contention

prep
  • Used other than figuratively or idiomatically: see in, contention. 

  • Contending for a title or championship. 

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