How do vietnamese name their children?
Vietnamese name their children just like any one else would name their children. The order of the childrens' name in Vietnamese would start off with the last name first, then middle name followed by the first name.
Tra my is just a name in vietnamese. If you had symbols on the name, it might have a meaning but not all names have a meaning. For example, if your name was trà my, the trà means tea but the my part has no meaning that I know of. My vietnamese name doesn't have a meaning. It's simply a name I was given at birth.
Vietnam has two national anthems due to the both different types Vietnamese flags. One Vietnamese flag is yellow with the 3 red stripes on it and the other Vietnamese flag is red with a yellow star in the middle. The name of the former Vietnamese national anthem is Tiếng gọi công dân and the other Vietnamese national anthem is Tiến quân ca.