Perhaps you should try some spelling variations:
"nguyen can minh chau" » "nguyen xuan minh chau", "nguyen cong minh chau", "nguyen manh minh chau", "nguyen can tinh chat", "nguyen ban minh chau", "nguyen dan minh chau", "nguyen tran minh chau"
"nguyen cao minh chau" » "nguyen cay minh chau", "nguyen bao minh chau", "nguyen vat minh chau", "nguyen cao tinh chat", "nguyen chi minh chau"
"nguyen van minh chau" » "nguyen van tinh chat"

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 chau") OR ("nguyen cao minh chau"))) or ("nguyen van minh chau"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nguyen can minh chau") OR ("nguyen cao minh chau"))) OR ("nguyen van minh chau")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"nguyen can minh chau\") OR (\"nguyen cao minh chau\"))) or (\"nguyen van minh chau\"))".
• Removing quotes may allow a broader search: (((( nguyen can minh chau ) OR ( nguyen cao minh chau ))) or ( nguyen van minh chau )).
• Adding a wildcard symbol may retrieve word variants: (((("nguyen can minh chau") OR ("nguyen cao minh chau"))) or ("nguyen van minh chau"))*.