abound vs hit pay dirt

abound

verb
  • To be copiously supplied 

  • To be full to overflowing. 

  • To be present or available in large numbers or quantities; to be plentiful. 

  • To be highly productive. 

  • To revel in. 

hit pay dirt

How often have the words abound and hit pay dirt occurred in a corpus of books? (source: Google Ngram Viewer )