liberalization vs trapping

liberalization

noun
  • the lessening of government regulations and restrictions in an economy in exchange for greater participation by private entitiesᵂᵖ 

  • The process or act of making more liberal. 

trapping

noun
  • An ornamental covering or harness for a horse; caparison. 

  • An instance of ensnaring something or someone. 

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