* The name is misspelled: Double check the spelling to see if there's a similar name that might be a better match.
* The author is not widely known: It's possible they are a newer or less well-known author.
* The author uses a different pen name: Many authors use pen names, so they might publish under a different name.
If you have more details about the author or their works, like the genre or publishing dates, it might be easier to find information.