Perhaps you should try some spelling variations:
"nguyen can minh chi" » "nguyen van minh chi", "nguyen xuan minh chi", "nguyen cong minh chi", "nguyen cao minh chi", "nguyen ban minh chi", "nguyen can dinh chi", "nguyen can linh chi", "nguyen can minh thu"
"nguyen nhu minh khue" » "nguyen thi minh khue", "nguyen huu minh khue", "nguyen huy minh khue", "nguyen thu minh khue", "nguyen nhu binh khue", "nguyen phu minh khue"
"nguyen nhu minh chau" » "nguyen thi minh chau", "nguyen huu minh chau", "nguyen huy minh chau", "nguyen nhu tinh chat", "nguyen thu minh chau", "nguyen nhu binh chau", "nguyen phu minh chau"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("nguyen can minh chi") or ((("nguyen nhu minh khue") or ("nguyen nhu minh chau"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nguyen can minh chi") OR ((("nguyen nhu minh khue") OR ("nguyen nhu minh chau")))).
• Removing quotes may allow a broader search: (( nguyen can minh chi ) or ((( nguyen nhu minh khue ) or ( nguyen nhu minh chau )))).
• Adding a wildcard symbol may retrieve word variants: (("nguyen can minh chi") or ((("nguyen nhu minh khue") or ("nguyen nhu minh chau"))))*.