dargah vs stupa

dargah

noun
  • A shrine associated with the grave of a Muslim saint or similar religious figure. 

stupa

noun
  • A dome-shaped Buddhist monument, used to house relics of the Lord Buddha. 

  • A stupe (medicated cloth or sponge). 

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