Perhaps you should try some spelling variations:
yuan chang » yuan cheng, huang chang, han chang
long thanh » luong thanh, long han, long trinh
yuan kang » yuan wang, chan kang, yuan kai
gene long » gene clone, gene one
chan eng » chan fong, chan kang, chan ming
thanh vu » thanh van, thanh _
yang xi » yang di, yang jui
yang yi » yang di, yang jui
vu paul » zu paul, fur paul

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((yuan kang) OR (yuan chang))) or (chan eng)) ((yang xi) or (yang yi)) gene long thanh vu paul ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((yuan kang) OR (yuan chang))) OR (chan eng)) ((yang xi) OR (yang yi)) gene long thanh vu paul ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yuan kang) OR (yuan chang))) or (chan eng)) ((yang xi) or (yang yi)) gene long thanh vu paul ;*".