Perhaps you should try some spelling variations:
"nguyen chi minh chau" » "nguyen nhu minh chau", "nguyen hai minh chau", "nguyen thu minh chau", "nguyen chi tinh chat"
"nguyen can dinh moi" » "nguyen van dinh moi", "nguyen xuan dinh moi", "nguyen cong dinh moi", "nguyen cac dinh moi", "nguyen can dinh so", "nguyen can dinh tri", "nguyen can dinh thi"
"nguyen thi minh chau" » "nguyen thi tinh chat", "nguyen thi hanh chau", "nguyen thi bich 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 dinh moi") or ((("nguyen thi minh chau") or ("nguyen chi minh chau"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nguyen can dinh moi") OR ((("nguyen thi minh chau") OR ("nguyen chi minh chau"))))*.
• Removing quotes may allow a broader search: (( nguyen can dinh moi ) or ((( nguyen thi minh chau ) or ( nguyen chi minh chau ))))*.