clover vs walkaway

clover

noun
  • The second Lenormand card, representing hope, optimism and short-term luck. 

  • A plant of the genus Trifolium with leaves usually divided into three (rarely four) leaflets and with white or red flowers. 

walkaway

noun
  • An easy victory; a walkover. 

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