open its doors vs unfurl

open its doors

verb
  • To begin operating. 

  • To allow or invite outside influence, investment or immigration. 

unfurl

verb
  • To roll out or debut anything. 

  • To open up by unrolling. 

  • To turn out or unfold; to evolve; to progress. 

  • To unroll or release something that had been rolled up, typically a sail or a flag. 

How often have the words open its doors and unfurl occurred in a corpus of books? (source: Google Ngram Viewer )