The only way you can get the info that was on that phone is if you... 1. Got the phone back and the stuff was still on it. 2. Had backed up everything to google or cloud account prior to the disappearance, and then you would be able to redownload it to your new device. 3. You had backed up all that info/files to a computer prior to the phone going away and could move the data over to a new device.
If none of the above applies, then there is no way to get the information back.