Where is my name ?

I remember long time ago that out of curiousity i put my name in google , but what i came up with was my address 20 years before . i found this strange . so i tried the name of a relative and came up with his name in a list when he was applying to a university 5 or 6 years before . i don't know how these search engines work but clearly something is missing in the information age . are search engines confined not go farther than this or that ?