It's possible:
* The name is misspelled: Double-check the spelling and try searching again.
* The person is not publicly known: If they were not a public figure or involved in significant events, their death might not be documented online.
To help me find more information, please provide:
* More details about Hansi Lang: Where were they from? What was their profession?
* Any other information you have: Do you know when or where they might have passed away?
With more information, I can better assist you in finding out if and when Hansi Lang died.