Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, peng liang
long thanh » luong thanh, long han, long trinh
yang yang » wang yang, wang yan
liang zhi » liang zhu, wang zhi, liang li
hong than » hong tan, hong hai
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: ((yang liang) or (yang yang)) liang zhi gene ((hong than) OR (long thanh)) hong sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang liang) OR (yang yang)) liang zhi gene ((hong than) OR (long thanh)) hong sau ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang liang) or (yang yang)) liang zhi gene ((hong than) OR (long thanh)) hong sau ;*".