long weekend vs sabbatical

long weekend

noun
  • A weekend extended by one or more days off falling on a day or days immediately preceding or following it. 

sabbatical

noun
  • An extended period of leave from a person's usual pursuits. 

adj
  • Relating to the Sabbath. 

  • Relating to a sabbatical. 

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