Perhaps you should try some spelling variations:
"nguyen hai dinh hue" » "nguyen van dinh hue", "nguyen huu dinh hue", "nguyen can dinh hue", "nguyen tai dinh hue", "nguyen ha dinh hue", "nguyen hai linh hue", "nguyen hai dinh thuy", "nguyen hai dinh chuc", "nguyen hai dinh hung"
"nguyen thi minh khai" » "nguyen thi minh khue", "nguyen thi minh chau", "nguyen thi minh chi", "nguyen chi minh khai", "nguyen thi bich khai"
"nguyen thi hanh khai" » "nguyen thi manh khai", "nguyen thi nhanh thai", "nguyen thi thanh hai", "nguyen thi thanh 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 hai dinh hue") or ((("nguyen thi minh khai") or ("nguyen thi hanh khai"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nguyen hai dinh hue") OR ((("nguyen thi minh khai") OR ("nguyen thi hanh khai")))).
• Removing quotes may allow a broader search: (( nguyen hai dinh hue ) or ((( nguyen thi minh khai ) or ( nguyen thi hanh khai )))).
• Adding a wildcard symbol may retrieve word variants: (("nguyen hai dinh hue") or ((("nguyen thi minh khai") or ("nguyen thi hanh khai"))))*.