Finding the right words
When searching for this class, it might be helpful to include the words "myth" or "mythology" in your search. For example, muses and mythology. Otherwise, you may get material concerning something named after the myth or mythical figure but otherwise unrelated.
Likewise, If searching a god or goddess, you might add the words "and deity" after the name, to focus on material concerning that figure. For example, Artemis and Greek deity.