haphazard vs luck of the draw

haphazard

noun

  • Simple chance, a random accident, luck. 

adj

  • Random; chaotic; incomplete; not thorough, constant, or consistent. 

luck of the draw

noun

  • The random production of favorable or unfavorable results; chance. 

How often have the words haphazard and luck of the draw occurred in a corpus of books? (source: Google Ngram Viewer )