fly in the face of vs transgress

fly in the face of

verb
  • To act in a manner highly contrary to; to counteract or contradict. 

transgress

verb
  • To act in violation of some law. 

  • To commit an offense; to sin. 

  • To exceed or overstep some limit or boundary. 

  • To spread over land along a shoreline; to inundate. 

How often have the words fly in the face of and transgress occurred in a corpus of books? (source: Google Ngram Viewer )