cooperation vs wrangling

cooperation

noun
  • The act of cooperating. 

  • Association for mutual benefit, such as for purposes of production or purchase. 

  • Active help from a person, organization, etc., such as an orderly sharing of space or resources. 

wrangling

noun
  • a dispute; a contentious argument; a brawl 

  • dispute; disputation; quarreling 

  • contention; gainstriving 

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