copious vs thick on the ground

copious

adj
  • Vast in quantity or number, profuse, abundant; taking place on a large scale. 

  • Full of thought, information, or matter; exuberant in words, expression, or style. 

  • Having an abundant supply. 

thick on the ground

adj
  • Existing, or present, in large numbers or amounts. 

How often have the words copious and thick on the ground occurred in a corpus of books? (source: Google Ngram Viewer )