Piddle vs Smoke

Piddle

name
  • A brook in Worcestershire, England. 

  • A small river in Dorset, England. 

Smoke

name
  • London. 

  • The 44th sura (chapter) of the Qur'an. 

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