good faith vs plain dealing

good faith

noun
  • Good, honest intentions, even if producing unfortunate results. 

adj
  • Having or done with good, honest intentions; well-intentioned. 

  • Presuming that all parties to a discussion are honest and intend to act in a fair and appropriate manner. 

plain dealing

noun
  • Straightforward honesty, without guile or deception. 

How often have the words good faith and plain dealing occurred in a corpus of books? (source: Google Ngram Viewer )