Perhaps you should try some spelling variations:
yong liang » song ligang, wang liang, you liang
yang liang » wang liang, yan liang, yang yang
gene tang » gene bank
hua gene » human gene, a gene, hua ren
tang min » chang min, sang minh, yang mind
hong hai » shang hai, zhong tai, dang hai
hong ghi » zhong zhi, hong g

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) OR (yang liang)) hua gene tang min ((hong hai) OR (hong ghi)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yong liang) OR (yang liang)) hua gene tang min ((hong hai) or (hong ghi)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yong liang) OR (yang liang)) hua gene tang min ((hong hai) or (hong ghi)) ;*.