Mills-and-Boon vs touching

Mills-and-Boon

touching

noun
  • The act by which something is touched. 

  • A snack served with alcoholic drinks in an informal environment. 

adj
  • Provoking sadness and pity; that can cause sadness or heartbreak among witnesses to a sad event or situation. 

prep
  • Regarding; concerning. 

How often have the words Mills-and-Boon and touching occurred in a corpus of books? (source: Google Ngram Viewer )