All our work and official information is passed on through mails but when you find, Yahoo emails disappeared it can hamper your work. You can attempt to retrieve the emails by looking in the trash folder and undeleting emails from there. Check your spam folder too, the emails might be received there, you can click on the mail and shift it to inbox. Another way to find Yahoo emails disappeared from inbox is by sending the request mail to Yahoo. You can click on Yahoo mail restore help and retrieve your emails.