Japayuki-san vs Magdalen

Japayuki-san

noun
  • A Filipina who travels to Japan to work as an entertainer, with implications of prostitution. 

Magdalen

name
  • A female given name from Hebrew, variant of Magdalene 

How often have the words Japayuki-san and Magdalen occurred in a corpus of books? (source: Google Ngram Viewer )