Perhaps you should try some spelling variations:
iii gender » ii gender, i gender
yang zwang » yang yang, yang guang, yang liang
liang yan » liang dan, liang tan, liang ying
yan zhang » yuan chang, bin zhang, han chang
zhang zhi » zhong zhi, wang zhi, zhang wei
yan wang » yuan wang, yang yang, qian wang
iii gene » iii rene, iii genome, i gene

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 ((yang zwang) OR (yan wang)) ((iii gender) OR (iii gene)) liang yan zhang zhi ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yang zwang) or (yan wang)) ((iii gender) OR (iii gene)) liang yan zhang zhi ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yang zwang) or (yan wang)) ((iii gender) OR (iii gene)) liang yan zhang zhi ;*.