discoverable vs viewable

discoverable

adj
  • Able to be discovered. 

  • Subject to legal discovery; able to be requested by an opposing party through a legal process such as a subpoena. 

viewable

adj
  • Able to be seen; visible. 

  • Able to be rendered correctly by a particular browser. 

  • Able to be viewed. 

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