hoax vs throw dust in someone's eyes

hoax

verb
  • To deceive (someone) by making them believe something that has been maliciously or mischievously fabricated. 

noun
  • Anything deliberately intended to deceive or trick. 

throw dust in someone's eyes

verb
  • To delude or deceive someone. 

How often have the words hoax and throw dust in someone's eyes occurred in a corpus of books? (source: Google Ngram Viewer )