Perhaps you should try some spelling variations:
long thanh » luong thanh, long han, long trinh
tang ching » hang china, tang chun, tang zheng
wang zheng » tang zheng, wang zhenpo, fang sheng
dong shui » tong shui, cong shu, tong hui
wen yong » wang yong, chen yong, zhen yong
kim dong » kim song, kim jong, kim young

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

• Performing a fuzzy search may retrieve terms with similar spellings: long thanh ((tang ching) or (wang zheng)) wen yong kim dong shui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: long thanh ((tang ching) OR (wang zheng)) wen yong kim dong shui ;.
• Adding a wildcard symbol may retrieve word variants: long thanh ((tang ching) or (wang zheng)) wen yong kim dong shui ;*.