Perhaps you should try some spelling variations:
wang liang » wang yang
zhang lein » zhang lin, zhang wei, zhang xin
zhang lei » zhang wei, zhang dai
gene dang » genre dans, gene bank
zhong zhi » zhang zhi, zhong tai
dang thi » dang hai
hong ghi » hong g, hong hai

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 ((zhang lein) OR (zhang lei)) gene dang thi ((zhong zhi) OR (hong ghi)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang ((zhang lein) or (zhang lei)) gene dang thi ((zhong zhi) OR (hong ghi)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang liang ((zhang lein) or (zhang lei)) gene dang thi ((zhong zhi) OR (hong ghi)) ;*.