I can understand "firce" and "fprce" or even "f9rce" but "furce" is, on a standard QWERTY keyboard, two keys away so more unlikely to be a typo.

Do Google do spelling correction based on letter locality on the expected user keyboard? Never seen any corrections that would suggest that, often wondered why not.

There used to be a service that would, given a query, search eBay for listings that matched it or common misspellings based on nearby keys. I wonder if any of that logic has made its way into modern autocorrect explicitly or if it would be gathered implicitly through studying what users actually correct.