easy-breezy vs plain sailing

easy-breezy

adj
  • laid-back and uncomplicated 

plain sailing

adj
  • simple, straightforward, or easy 

noun
  • The navigation of waters free from hazards or unfavourable winds. 

  • Something that is simple, straightforward, or easy; something that offers no troubles or difficulties. 

How often have the words easy-breezy and plain sailing occurred in a corpus of books? (source: Google Ngram Viewer )