Perhaps you should try some spelling variations:
"nguyen nhu minh thi" » "nguyen thi minh thi", "nguyen huu minh thi", "nguyen huy minh thi", "nguyen thu minh thi", "nguyen nhu binh thi", "nguyen nhat minh thi", "nguyen nhu dinh thi", "nguyen nhu minh thu", "nguyen nhu minh tri"
"nguyen phu minh thi" » "nguyen phuc minh thi", "nguyen thu minh thi", "nguyen thuy minh thi", "nguyen phu dinh thi", "nguyen phu minh thu", "nguyen phu minh tri", "nguyen phu ninh thi", "nguyen phu tinh thi"
"nguyen hai minh chau" » "nguyen thi minh chau", "nguyen van minh chau", "nguyen huu minh chau", "nguyen hai tinh chat", "nguyen khai minh chau", "nguyen thai minh chau", "nguyen hai linh 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 nhu minh thi") OR ("nguyen phu minh thi"))) or ("nguyen hai minh chau"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nguyen nhu minh thi") OR ("nguyen phu minh thi"))) OR ("nguyen hai minh chau"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"nguyen nhu minh thi\") OR (\"nguyen phu minh thi\"))) or (\"nguyen hai minh chau\"))*".
• Removing quotes may allow a broader search: (((( nguyen nhu minh thi ) OR ( nguyen phu minh thi ))) or ( nguyen hai minh chau ))*.