Perhaps you should try some spelling variations:
"nguyen xuan tinh thue" » "nguyen van tinh thue", "nguyen xuan trinh thue", "nguyen xuan dinh thue", "nguyen xuan kinh thue", "nguyen xuan tinh thua", "nguyen xuan trinh thuc", "nguyen xuan trinh thuy"
"nguyen thi minh khue" » "nguyen chi minh khue", "nguyen thi hanh khue", "nguyen thi bich khue"
"nguyen thi bach hue" » "nguyen thi bich hue", "nguyen thi hanh hue", "nguyen thi anh hue"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("nguyen xuan tinh thue") OR ((("nguyen thi minh khue") OR ("nguyen thi bach hue"))))~.
• Removing quotes may allow a broader search: (( nguyen xuan tinh thue ) or ((( nguyen thi minh khue ) or ( nguyen thi bach hue ))))~.
• Adding a wildcard symbol may retrieve word variants: (("nguyen xuan tinh thue") or ((("nguyen thi minh khue") or ("nguyen thi bach hue"))))*.