refinement vs reorientation

refinement

noun
  • The act, or the result of refining; the removal of impurities, or a purified material 

  • A fine or subtle distinction. 

  • High-class style; cultivation. 

reorientation

noun
  • The act of changing the direction of something. 

  • A new orientation. 

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