Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
gene jing » zeng jing
tan yang » dan yang, tan ying, tan yong
hua gene » human gene, a gene, hua ren
ying sar » using sar, kong sar
jing ji » ying jin
ji ying » jin ying, li ying, hoi ying
wang » lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang or wan) or wing) ((tan yang) or (yang yang)) hua gene jing ji ying sar ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang OR wan) OR wing) ((tan yang) OR (yang yang)) hua gene jing ji ying sar ;.
• Adding a wildcard symbol may retrieve word variants: ((wang or wan) or wing) ((tan yang) or (yang yang)) hua gene jing ji ying sar ;*.