collected works vs compendium

collected works

compendium

noun
  • A collection of board games packaged in a single box. 

  • A short, complete summary; an abstract. 

  • A collected body of information on the standards of strength, purity, and quality of drugs. 

  • A list or collection of various items. 

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