bonanza vs discovery

bonanza

noun
  • A rich mine or vein of silver or gold. 

  • The point at which two mother lodes intersect. 

  • Anything which is a great source of wealth or yields a large income or return. 

discovery

noun
  • Something discovered. 

  • A pre-trial phase in which evidence is gathered. 

  • Materials revealed to the opposing party during the pre-trial phase in which evidence is gathered. 

  • The discovering of new things. 

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