Lost Project

I'd been working on a video for 3 days (PC) and it had been saving each day with no problem. One day there's a power cut and the project has completely vanished. There are shortened random edited clips in the Adobe folder but it doesn't seem to be the whole thing. Can't remember if it was synced, but I just don't get why it was accessed fine the previous 2 days then it's not there. How can I retrieve it, it has to be somewhere??