ice cream bar vs sorbet

ice cream bar

noun
  • A frozen dessert on a stick or a candy bar that has ice cream in it. The coating is usually a thin layer of chocolate. 

sorbet

noun
  • Frozen fruit juice, sometimes mixed with egg whites, eaten as dessert or between courses of a meal. 

How often have the words ice cream bar and sorbet occurred in a corpus of books? (source: Google Ngram Viewer )