Buller vs Save

Buller

name
  • A river and gorge on the West Coast, New Zealand. 

  • A surname from Middle English. 

  • A local government district in the same area of New Zealand. 

Save

name
  • A river in southeastern Africa that flows about 400 km (250 mi) from south of Harare in Zimbabwe, through Mozambique, to the Indian Ocean. 

  • A river in southern France that flows about 143 km (89 mi) from the Pyrenees to the Garonne at Grenade. 

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