Perhaps you should try some spelling variations:
"nguyen ban minh khai" » "nguyen bang minh khai", "nguyen van minh khai", "nguyen can minh khai", "nguyen ban minh khue", "nguyen ban minh chau", "nguyen ban minh chi", "nguyen ban tinh khai", "nguyen ban linh khai"
"nguyen nhu minh khai" » "nguyen thi minh khai", "nguyen huu minh khai", "nguyen huy minh khai", "nguyen nhu minh khue", "nguyen nhu minh chau", "nguyen nhu minh chi", "nguyen thu minh khai", "nguyen nhu binh khai", "nguyen nhat minh khai"
"nguyen phu minh khai" » "nguyen phuc minh khai", "nguyen thu minh khai", "nguyen thuy minh khai", "nguyen phu minh khue", "nguyen phu minh chau", "nguyen phu minh chi", "nguyen phu ninh khai", "nguyen phu tinh khai"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("nguyen ban minh khai") or ((("nguyen nhu minh khai") OR ("nguyen phu minh khai"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nguyen ban minh khai") OR ((("nguyen nhu minh khai") OR ("nguyen phu minh khai")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"nguyen ban minh khai\") or (((\"nguyen nhu minh khai\") OR (\"nguyen phu minh khai\"))))".
• Removing quotes may allow a broader search: (( nguyen ban minh khai ) or ((( nguyen nhu minh khai ) OR ( nguyen phu minh khai )))).
• Adding a wildcard symbol may retrieve word variants: (("nguyen ban minh khai") or ((("nguyen nhu minh khai") OR ("nguyen phu minh khai"))))*.