governance vs ruling

governance

noun
  • The process, or the power, of governing; government or administration. 

  • Accountability for consistent, cohesive policies, processes and decision rights. 

  • The state of being governed. 

  • The specific system by which a political system is ruled. 

  • The group of people who make up an administrative body. 

ruling

noun
  • An order or a decision on a point of law from someone in authority. 

adj
  • That rules; predominant; chief; reigning; controlling. 

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