According to Article 28 Civil Code 2015 Regulations, individuals have the right to request a competent state agency to recognize a name change in the following 7 cases:

- At the request of the person whose name is used if the use of that name causes confusion, affects family feelings, honor, rights and legitimate interests of that person;

- At the request of the adoptive father or adoptive mother to change the name of the adopted child or when the adopted child stops being an adopted child and this person or the biological father or mother requests to regain the name given by the biological father or mother;

- At the request of the biological father, biological mother or child when determining the child's father or mother;

- Change the name of a lost person who has discovered his or her bloodline origin;

- Change the name of the spouse in a marriage and family relationship involving foreign elements to comply with the law of the country where the foreign spouse is a citizen or regain the name before the change;

- Changing the name of a person who has had their gender reassigned or a person who has changed gender;

- Other cases prescribed by the law on civil status

Therefore, in the case you provided, if a Vietnamese citizen who also has foreign nationality simply wants to change his or her name, there is no basis to make the change.

For example, at the request of the person with the name, the use of that name causes confusion, affects family feelings, honor, rights, and legitimate interests of that person, then only then can it be implemented. Currently, there are no errors by the previous registration agency. Moreover, the name in the Birth Certificate is the basis for appearing on that individual's own documents, so it is not necessary to change it if it is not in the school. above.