Perhaps you should try some spelling variations:
"nguyen duc luong." » "nguyen huu luong." (Expand Search), "nguyen huy luong." (Expand Search), "nguyen duc duong." (Expand Search), "nguyen duc cuong." (Expand Search), "nguyen duy luong." (Expand Search)
"nguyen luc luong." » "nguyen loc luong." (Expand Search), "nguyen luu luong." (Expand Search), "nguyen cuc luong." (Expand Search), "nguyen luc thong." (Expand Search)
"nguyen khac luong." » "nguyen khac xuong." (Expand Search), "nguyen khac cuong." (Expand Search), "nguyen khac truong." (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 luc luong."))) OR ("nguyen khac luong."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"nguyen duc luong.\") OR (\"nguyen luc luong.\"))) OR (\"nguyen khac luong.\"))".
• Removing quotes may allow a broader search: (((( nguyen duc luong. ) OR ( nguyen luc luong. ))) OR ( nguyen khac luong. )).
• Adding a wildcard symbol may retrieve word variants: (((("nguyen duc luong.") OR ("nguyen luc luong."))) OR ("nguyen khac luong."))*.