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

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