Hello:
The questions with the same name can help you to be more accurate at most. I will tell you the method. You can try it yourself. If it is inconvenient, ask me again.
If you have more precise requirements, it is recommended to spend money to ask professionals. There is generally no free lunch with that level of accuracy.
I recommand:
Du Niang: with the same name, the one at the top must be:
The same name, the same surname, the same name and the same surname - based on the National Citizen Identity Information System database Do
When you click on this website, it is a website dedicated to solving the questions you asked!
One advantage of this website is that you can clearly see which province and how many people with the same name as the one you entered!