Why can't I find some novels I bought online?

There were several possible reasons why a purchased novel could not be found online: 1. copyright protection: the novel may be within the scope of copyright protection in a certain country or region, so it cannot be searched online for free. 2. The copyright has been resold: The author of the novel may have resold the copyright to a company or individual. This means that the novel is no longer protected by copyright and can be used and shared by other companies or individuals. 3. The copyright has not expired yet: The copyright of the novel may not have expired yet, so it has not been purchased by other companies or individuals. 4. The copyright is open source: The novel may have been shared in the open source community and thus included by other websites or individuals but cannot be searched in search engines. 5. Search algorithm limitations: Search engine results may be limited by the author, the publishing company, or other related companies, so it is impossible to find all relevant information. These are some of the reasons why the novels you bought might not be found online.