guesthouse vs youth hostel

guesthouse

noun
  • A small house near a main house, for lodging visitors. 

  • A private house offering accommodation to paying guests; a boarding house; a bed and breakfast. 

youth hostel

noun
  • An inexpensive supervised lodging place, primarily for young people. 

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