centralization vs focusing

centralization

noun
  • The act or process of centralizing, or the state of being centralized; the act or process of combining or reducing several parts into a whole 

focusing

noun
  • The action of the verb to focus. 

adj
  • Used for or pertaining to focusing. 

  • Pertaining to the direction of attention, effort, or energy to a particular audience or purpose over time. 

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