avarice vs sunshine and rainbows

avarice

noun
  • Inordinate desire for some supposed good. 

  • Excessive or inordinate desire of gain; greed for wealth 

sunshine and rainbows

noun
  • Happy, positive things, sometimes with a connotation of unrealistic expectations. 

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