adult material vs bawdry

adult material

noun
  • pornography. 

bawdry

noun
  • Illicit intercourse; fornication. 

  • Obscenity; filthy, unchaste language. 

  • The practice of procuring women for the gratification of lust. 

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