Hello!
The songs provided in the i Music that comes with the mobile phone are all copyrighted music. The reason why it cannot be searched is that Baidu does not provide genuine music for the song. If you can't find the song, you can use Baidu Music or install other third-party players to download and use it.
If you have any questions, you can consult us at any time. Thank you very much for your support of our vivo, and wish you a happy life!