* The name is misspelled: Perhaps the author's name is slightly different. You could try searching for variations of the spelling.
* The author is relatively unknown: The author may be a new or lesser-known writer, making it difficult to find information online.
* The author has a different name: The author may use a pseudonym or have published under a different name.
To help me find more information, could you please provide any additional context you have, such as:
* The genre of the work: What type of books did the author write?
* The time period: When were the books published?
* Any other details you know about the author: Do you know anything about their nationality, education, or any other works they might have written?
With more information, I might be able to find information about Tadeo Bartolini.