My mobile phone is lost. The contents inside are very important. Is there any way to find it?

If you lose your phone, try calling your own number first. If anyone picks up. Try to give a little. cash. Make remuneration. Get your phone back. If that doesn't work. Now every mobile phone brand has its own cloud. The server usually does this automatically. Back up everything on your phone. Choose to buy a mobile phone of the same brand and log in with your own account. Then you can get things back.