Perhaps you should try some spelling variations:
hua brain » human brain, a brain, hua ban
yong tan » hong tan, ybhg tan, yong ben
wing tan » wing ian, liang tan, hong tan
yang jie » yang jin, yang di, yang jui
kong shu » cong shu, kong siu, tong shui
tong hui » wang hui
kong eiu » tonga eiu

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 ((yong tan) OR (wing tan)) hua brain yang jie ((((kong shu) OR (tong hui))) OR (kong eiu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yong tan) OR (wing tan)) hua brain yang jie ((((kong shu) or (tong hui))) or (kong eiu)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yong tan) OR (wing tan)) hua brain yang jie ((((kong shu) or (tong hui))) or (kong eiu)) ;*.