misuse vs preying on

misuse

noun
  • An incorrect, improper or unlawful use of something. 

verb
  • To rape (a woman); later more generally, to sexually abuse (someone). 

  • To use (something) incorrectly. 

  • To abuse or mistreat (something or someone). 

preying on

How often have the words misuse and preying on occurred in a corpus of books? (source: Google Ngram Viewer )