How to recover deleted files/photos?

[EuniceKim1122]

I was trying to combine 2 Tumblr files into one through an app called File Manager. I moved them all into one, and then deleted the first 2. I realized that for some reason they didn't appear in my gallery, so I worked around it but accidentally deleted the file with all my photos. I've been looking up online, trying Dr. Fone, Recuva although it said it couldn't read all of my files, but I can't get anything to work. Is there a way to recover them?