It's possible that:
* The name is misspelled: Perhaps you meant a different name? Could you double-check the spelling?
* The author is less known: There could be an author with that name who has written less known works. To help me find them, could you tell me more about what kind of writing you are looking for (genre, time period, etc.)?
* The author is not public: It's possible they write under a pen name or have not published their works publicly.
Let me know if you have more information, and I'll do my best to help you find the author you are looking for!