Perhaps you should try some spelling variations:
long thanh » luong thanh, long han, long trinh
qian wang » yiqian wang, qian rong, qian yan
wang yang » wang yan, wang liang, wang yanling
hong than » hong tan, hong hai
yang zhi » wang zhi, yan zhi, liang zhi
zhi gene » i gene, iii gene
hong sau » wong sau, hong paul, kong sar

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

• Performing a fuzzy search may retrieve terms with similar spellings: qian wang yang zhi gene ((hong than) or (long thanh)) hong sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: qian wang yang zhi gene ((hong than) OR (long thanh)) hong sau ;*.