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 » gene one
than hong » tan hong, than one, tin hong
yang jui » yang judy, yang di, yang xi
eng hong » hong hong, kong hong, ong chong

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 jui ((gene hong) or (eng hong)) ((than hong) OR (thang long)) paul ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yuan wang yang jui ((gene hong) OR (eng hong)) ((than hong) OR (thang long)) paul ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yuan wang yang jui ((gene hong) or (eng hong)) ((than hong) OR (thang long)) paul ;*".