Is there a way to restore my notes without losing the new ones?

A while ago I updates my OS and it involved deleting everything and restoring Doron backup. Only now have I realized that many of my notes were not restored. I've written many since then and don't want to lose them with performing a restoration from an older backup. I steer a way to only retrieve the old ones, even as a file on my computer? I'm a writer and those notes are important...

Thanks!