Perhaps you should try some spelling variations:
long thanh » luong thanh, long han, long trinh
yuan wang » yan wang, yuan kang, yuan chang
wang yang » wang yan, wang liang, wang yanling
hong than » hong hai
hong paul » ron paul
yang xi » yang di, yang yi, yang jui
xi gene » i gene, iii gene

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

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