Hum vs Yola

Hum

name
  • A town in the central part of Istria, northwest Croatia, 7 km from Roč. 

Yola

name
  • The largest city and state capital of Adamawa State, Nigeria. 

  • An extinct West Germanic language formerly spoken in Wexford, Ireland. 

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