Bluff vs Sharpness

Bluff

name
  • A town in New Zealand, the southernmost in the South Island, and seaport for the Southland region. 

Sharpness

name
  • An inland port in Stroud district, Gloucestershire, England (OS grid ref SO6702). 

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