"Victory" in Vietnamese means " Chiến Thắng" but " Thắng" is the name for boy in Vietnam.
You can use Nhã Kỳ for similar sound with your name : Niky
Nhã Kỳ nearly means : elegant
For the family names , Vietnamese has family names by fruit :
Lê : pear
Đào : peach
You can use Lê Nhã Kỳ for Vietnamese name ^^
Have a good time !