insure vs try one’s luck

insure

verb
  • To deal in such contracts; subscribe to a policy of insurance 

  • To provide for compensation if some specified risk occurs. Often agreed by policy (contract) to offer financial compensation in case of an accident, theft or other undesirable event. 

try one’s luck

How often have the words insure and try one’s luck occurred in a corpus of books? (source: Google Ngram Viewer )