Perhaps you should try some spelling variations:
"nguyen thi hanh chi" » "nguyen thi thanh chi", "nguyen thi banh chi", "nguyen thi hanh che", "nguyen thi hanh chinh"
"nguyen thi danh chi" » "nguyen thai danh chi", "nguyen thi anh chi", "nguyen thi oanh chi", "nguyen thi danh cho", "nguyen thi banh chi", "nguyen thi danh thin"
"nguyen thi dinh chi" » "nguyen thoi dinh chi", "nguyen thi minh chi", "nguyen thi hinh chi", "nguyen thi dinh thi", "nguyen thi dinh tri", "nguyen thi dinh moi"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("nguyen thi hanh chi") or ((("nguyen thi danh chi") OR ("nguyen thi dinh chi"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nguyen thi hanh chi") OR ((("nguyen thi danh chi") OR ("nguyen thi dinh chi")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"nguyen thi hanh chi\") or (((\"nguyen thi danh chi\") OR (\"nguyen thi dinh chi\"))))".
• Removing quotes may allow a broader search: (( nguyen thi hanh chi ) or ((( nguyen thi danh chi ) OR ( nguyen thi dinh chi )))).
• Adding a wildcard symbol may retrieve word variants: (("nguyen thi hanh chi") or ((("nguyen thi danh chi") OR ("nguyen thi dinh chi"))))*.