Perhaps you should try some spelling variations:
yang ying » yang jing, huang ying, liang ying
yang yang » wang yang
gene tang » gene bank
tang tang » taizong tang
zhong tai » hong tan, hong hai, zhong zhi
iii gene » iii rene, iii gender, iii genome
yang » ryang
yan » ryan
zhong » zlong
hong » long

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 ying) OR (((yang yang) OR (wang yan)))) iii gene tang tang ((zhong tai) OR (hong w)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yang ying) or (((yang yang) OR (wang yan)))) iii gene tang tang ((zhong tai) or (hong w)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yang ying) or (((yang yang) OR (wang yan)))) iii gene tang tang ((zhong tai) or (hong w)) ;*.