Perhaps you should try some spelling variations:
long thanh » luong thanh, long han, long trinh
thanh tan » thanh van, thanh dam
tan ching » tan cheng, tuan china, ban chiang
kwan yang » wang yang, awam yang, dan yang
tong shui » tong hui, cong shu, gong hui
yang jin » yang jie, yang jun, ying jin
wang wei » zhang wei, wang zhi

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 tan ching kwan yang jin ((tong shui) or (wang wei)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: long thanh tan ching kwan yang jin ((tong shui) OR (wang wei)) ;.
• Adding a wildcard symbol may retrieve word variants: long thanh tan ching kwan yang jin ((tong shui) or (wang wei)) ;*.