It's possible:
* The name is misspelled. Try searching for a slightly different version of the name.
* The person is relatively unknown. They may have smaller roles or work primarily in independent films or regional television.
* The person is not yet in the entertainment industry. They may be aspiring to be an actor or filmmaker but have no credits yet.
To help me find the information you're looking for, could you please provide more details about Vance Mitchell? For example:
* What is the context of your question? Are you looking for someone who was in a specific movie or TV show?
* Do you have any other information about them? For example, their age, hometown, or any other projects they might be involved in.
With more information, I might be able to help you find more specific results.