Perhaps you should try some spelling variations:
wang liang » wang yang
liang wang » liang dan, liang ying, ping wang
wang human » wang xueman, wang hua, facing human
human gene » human genome, human gender, human bone
liang tan » liang dan, liang sun, wing tan
ying tan » wing tan, ying bank, ying yang

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 liang wang human gene ((ying tan) OR (liang tan)) kong (sar OR star) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang wang human gene ((ying tan) OR (liang tan)) kong (sar or star) ;~".
• Adding a wildcard symbol may retrieve word variants: wang liang wang human gene ((ying tan) OR (liang tan)) kong (sar or star) ;*.