Perhaps you should try some spelling variations:
wang hong » wang yong, wang hyoung, wang lihong
yang hua » wang hua, yang hui, ying hua
gene yan » gene bank, ren yan, see yan
wong sam » wong sau, wong lai, kong sar
yang xi » yang di, yang yi, yang jui
won sau » wong sau, wong siu
yan ji » yan jiu, ban ji, pan ji

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang hong ((yang hua) or (yang xi)) gene yan ji ((won sau) OR (wong sam)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang hong ((yang hua) OR (yang xi)) gene yan ji ((won sau) OR (wong sam)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang hong ((yang hua) or (yang xi)) gene yan ji ((won sau) OR (wong sam)) ;".
• Adding a wildcard symbol may retrieve word variants: wang hong ((yang hua) or (yang xi)) gene yan ji ((won sau) OR (wong sam)) ;*.