mutasarrif vs sanjakbey

mutasarrif

noun
  • The governor of a province in some Muslim contexts, particularly (historical) in the Ottoman Empire. 

sanjakbey

noun
  • An official of the Ottoman Empire who oversaw a sanjak. 

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