It's possible that:
* The name is misspelled: Double check the spelling of the name.
* The author uses a different name: The author may have used a pen name or have published under a different, less common variant of the name.
* The author is relatively unknown: It's possible the author is a lesser-known writer, and their work may not be widely documented online.
If you have any more information about the author or their work, such as a specific book title, genre, or publishing date, it might help in finding more information.