Perhaps you should try some spelling variations:
"nguyen hai linh khue" » "nguyen van linh khue", "nguyen huu linh khue", "nguyen can linh khue", "nguyen hai minh khue", "nguyen hai dinh hue", "nguyen hai tinh thue", "nguyen hoai linh khue", "nguyen thai binh khue", "nguyen phai sinh khue"
"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 linh khue") 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 linh khue") OR ((("nguyen thi minh khai") OR ("nguyen thi hanh khai")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"nguyen hai linh khue\") or (((\"nguyen thi minh khai\") OR (\"nguyen thi hanh khai\"))))".
• Removing quotes may allow a broader search: (( nguyen hai linh khue ) or ((( nguyen thi minh khai ) OR ( nguyen thi hanh khai )))).
• Adding a wildcard symbol may retrieve word variants: (("nguyen hai linh khue") or ((("nguyen thi minh khai") OR ("nguyen thi hanh khai"))))*.