Perhaps you should try some spelling variations:
liang human » leading human, change human
yong liang » yang liang, song ligang, wang liang
human gene » human genome, human gender, human bone
wang yong » wang yang, wang hyoung, wang yan
song ming » song bing, song min, gong min
jeong 情 » jeong _, jeongui 情, jeong su
sang min » sang minh, song min, tang min
jeong mi » jeong _, jeong su, jong min

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 liang human gene ((sang min) OR (song ming)) ((jeong mi) OR (jeong 情)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong liang human gene ((sang min) or (song ming)) ((jeong mi) OR (jeong 情)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yong liang human gene ((sang min) or (song ming)) ((jeong mi) OR (jeong 情)) ;*.