collectanea vs smorgasbord

collectanea

noun
  • A selective collection of passages from various sources or by various authors; an anthology. 

smorgasbord

noun
  • An abundant and diverse collection of things. 

  • A Swedish-style buffet comprising a variety of cold sandwiches and other dishes; (by extension) any buffet with a wide selection of dishes. 

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