Perhaps you should try some spelling variations:
"nguyen phuc long." » "nguyen huu long." (Expand Search), "nguyen huy long." (Expand Search), "nguyen phan long." (Expand Search), "nguyen phuc trong." (Expand Search), "nguyen phuc dung." (Expand Search), "nguyen phuc hung." (Expand Search)
"nguyen duc luong." » "nguyen huu luong." (Expand Search), "nguyen huy luong." (Expand Search), "nguyen luc luong." (Expand Search), "nguyen duc duong." (Expand Search), "nguyen duc cuong." (Expand Search)
"nguyen khac long." » "nguyen khac luong." (Expand Search), "nguyen khac song." (Expand Search), "nguyen khac xuong." (Expand Search)

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("nguyen duc luong.") OR ((("nguyen phuc long.") OR ("nguyen khac long."))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"nguyen duc luong.\") OR (((\"nguyen phuc long.\") OR (\"nguyen khac long.\"))))".
• Removing quotes may allow a broader search: (( nguyen duc luong. ) OR ((( nguyen phuc long. ) OR ( nguyen khac long. )))).
• Adding a wildcard symbol may retrieve word variants: (("nguyen duc luong.") OR ((("nguyen phuc long.") OR ("nguyen khac long."))))*.