get out of someone's clutches vs take French leave

get out of someone's clutches

take French leave

verb
  • Synonym of slip out, to leave suddenly without notice or permission. 

  • Synonym of go AWOL, to desert or be temporarily absent from military service without permission. 

How often have the words get out of someone's clutches and take French leave occurred in a corpus of books? (source: Google Ngram Viewer )