Perhaps you should try some spelling variations:
yong yang » dong yang, kyoung yang, yong phang
yang yang » wang yang, wang yan
ying yang » yin yang, ying chang, wang yang
iii gene » iii rene, iii gender, iii genome
iii kein » iii keine, iii ein, ii kein
gene we » gene w, gene one, gene set
kern » ken, bern, kerr
ghi » nghi, ghia

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 yang) OR (yang yang))) OR (ying yang)) iii gene we ((iii kein) OR (im kern)) ghi ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((((yong yang) or (yang yang))) or (ying yang)) iii gene we ((iii kein) or (im kern)) ghi ;*.