Perhaps you should try some spelling variations:
long trinh » long trip, long thanh
trinh xuan » trinh quang
xuan cheng » yuan cheng, huang cheng, tan cheng
cheng wei » chen wei, cheng hei, cheng siwei
tong shui » cong shu, gong hui
wei wang » wei yang, wen wang, wei shang
wang jie » yang jie, tang jie, wang jing
tong hui » wang hui
dong xu » dong hua, dong liu

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

• Performing a fuzzy search may retrieve terms with similar spellings: long trinh xuan cheng wei wang jie ((((tong shui) or (tong hui))) or (dong xu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: long trinh xuan cheng wei wang jie ((((tong shui) OR (tong hui))) OR (dong xu)) ;.
• Adding a wildcard symbol may retrieve word variants: long trinh xuan cheng wei wang jie ((((tong shui) or (tong hui))) or (dong xu)) ;*.