Perhaps you should try some spelling variations:
human gene » human genome, human gender, human bone
yang yang » wang yang, wang yan
using sar » using sat, using svr, using smart
yan yang » yao yang, dan yang, tan yang
ying jin » yang jin, jing ji, yang jie
ying sar » kong sar
wang » wing, wan, 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 ((yan yang) or (yang yang)) human gene ying jin ((ying sar) OR (using sar)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan yang) OR (yang yang)) human gene ying jin ((ying sar) OR (using sar)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan yang) or (yang yang)) human gene ying jin ((ying sar) OR (using sar)) ;".
• Adding a wildcard symbol may retrieve word variants: wang ((yan yang) or (yang yang)) human gene ying jin ((ying sar) OR (using sar)) ;*.