escargot vs land snail

escargot

noun
  • A snail (often Helix pomatia) used in preparation of that dish. 

  • A dish, commonly associated with French cuisine, consisting of edible snails. 

land snail

noun
  • Any species of snail that lives on land. 

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