Perhaps you should try some spelling variations:
wang liang » wang yang
yang yang » wang yang, wang yan
gene yang » gene bank
hua gene » human gene, a gene, hua ren
yang tin » yang jin, yang lin, yang jing
hong ghi » zhong zhi, hong g
hong hai » shang hai, zhong tai, dang hai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang yang) or (wang liang)) ya hua gene yang tin ((hong ghi) or (hong hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (wang liang)) ya hua gene yang tin ((hong ghi) OR (hong hai)) ;.
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (wang liang)) ya hua gene yang tin ((hong ghi) or (hong hai)) ;*.