Perhaps you should try some spelling variations:
long thanh » luong thanh, long han, long trinh
thanh tang » tang tang, thanh mung, thanh van
tang ching » hang china, tang chun, tang zheng
ching wen » ching kwan, ching fein, ching hea
wen yong » wang yong, chen yong, zhen yong
kim dong » kim song, kim jong, kim eung

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