Perhaps you should try some spelling variations:
thang long » change long
yuan wang » yan wang, yuan kang, yuan chang
wang yang » wang yan, wang liang, wang yanling
gene hong » eng hong, gene one
than hong » tan hong, than one, tin hong
yang zhi » wang zhi, yan zhi, liang zhi
zhi gene » i gene, iii gene

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "yuan wang yang zhi gene hong ((than hong) OR (thang long)) paul ;~".
• Adding a wildcard symbol may retrieve word variants: yuan wang yang zhi gene hong ((than hong) OR (thang long)) paul ;*.