Perhaps you should try some spelling variations:
lang yanling » wang yanling, wang yangming, zhang yunling
sang minh » kang minah, anh minh, song min
minh gong » minh cong, min hong, ming kong
yang xin » yang jin, yang lin, zhang xin
lee sang » lee ann
gong hui » tong hui, tong shui, wang hui
yang xi » yang di, yang yi, yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang yanling ((yang xi) or (yang xin)) lee sang minh gong hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yanling ((yang xi) OR (yang xin)) lee sang minh gong hui ;.
• Adding a wildcard symbol may retrieve word variants: lang yanling ((yang xi) or (yang xin)) lee sang minh gong hui ;*.