Enter what? I don't understand what you are trying to understand.
For instance, if you are trying to find out if there are any people in the system who have the name "abcdefghij", and you enter into the name search box "abcdefghij" and it says there are 15 profiles with that name, EXCEPT none of them are shown, then I think it could be a safe assumption that there were at one time 15 profiles carrying that name, AND they would be numbers from -1 to -15. So, upon entering in the url abcdefghij-1 (or -2, or -3, etc) you will discover what happened to the profiles carrying that name, or at least, you will find the profile to where it's been redirected, if it has been merged.