corps vs human resources

corps

noun
  • An organized group of people united by a common purpose. 

  • A battlefield formation composed of two or more divisions. 

human resources

noun
  • The personnel employed in an organization. 

  • The personnel department of an organization, dealing with the recruitment, administration, management and training of employees; abbreviated as HR. 

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