Perhaps you should try some spelling variations:
wang wang » wang yang, wang liang, wang yan
gene yang » gene bank
yang john » young john, king john, yang jin
john song » john wong, john bonn, john ngosong
song same » non same, song pae, wong sam
yong hua » dong hua, wang hua, gong hui
tong hui » wang hui
ying hua » ming hua, wang hua, ying zhu

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 wang ((((yong hua) OR (tong hui))) OR (ying hua)) gene yang john song same ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang wang ((((yong hua) OR (tong hui))) or (ying hua)) gene yang john song same ;~".
• Adding a wildcard symbol may retrieve word variants: wang wang ((((yong hua) OR (tong hui))) or (ying hua)) gene yang john song same ;*.