dough scraper vs fish slice

dough scraper

noun
  • A rubber or metal implement used to scrape food, such as dough, off a countertop, out of a bowl, etc. 

fish slice

noun
  • A kitchen utensil used to turn foodstuffs (commonly, burgers and omelettes) in a frying pan; a spatula. 

How often have the words dough scraper and fish slice occurred in a corpus of books? (source: Google Ngram Viewer )