Perhaps you should try some spelling variations:
wang hong » wang yong, wang hyoung, wang lihong
yang hua » wang hua, ying hua, yang jui
yang hui » yang jui, wang hui, yang muxi
gene yan » gene bank, ren yan, see yan
yang xi » yang di, yang yi, yang jui
von sam » von sa, von sap, von scham
yan ji » yan jiu, ban ji, pan ji

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

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