complexity vs jungle

complexity

noun
  • The state of being complex; intricacy; entanglement. 

  • That which is and renders complex; intricacy; complication. 

jungle

noun
  • A tangled mess. 

  • A large, undeveloped, humid forest, especially in a tropical region, that is home to many wild plants and animals; a tropical rainforest. 

  • Dense rough. 

  • A style of electronic dance music and precursor of drum and bass. 

  • A hairy vulva. 

  • Any uncultivated tract of forest or scrub habitat. 

  • A place where people behave ruthlessly, unconstrained by law or morality. 

  • An area where hobos camp together. 

  • A desert region. 

  • A migrant camp. 

adj
  • resembling the fast-paced drumming of traditional peoples of the jungle. 

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