sanity test vs retest code example

Example 1: sanity testing vs retesting

Usually I do sanity test after bug fixes
to check everything works properly and
I don't have a test data
RETESTING
It's a testing type to check whether bug which
founded is fixed or not.

Very similar

Example 2: sanity test vs smoke test

Usually I do sanity test after bug fixes
to check everything works properly and
I don't have a test data and I don't 
document it but on the other hand 
smoke test needs to be documented.