Perhaps you should try some spelling variations:
yang yang » wang yan
wang yong » wang hyoung, wang yan, wang shiyong
wang yang » wang yan, wang liang, wang yanling
hua gene » human gene, a gene, hy5 gene
yang jin » yang jie, yang jun, ying jin
jin dang » jin kang, jin chang, jing fang
hua ren » hua chen
hai » hadi, haji, hari

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 yong) or (wang yang)))) ya ((hua gene) OR (hua ren)) yang jin dang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (((wang yong) OR (wang yang)))) ya ((hua gene) OR (hua ren)) yang jin dang hai ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang yang) or (((wang yong) or (wang yang)))) ya ((hua gene) OR (hua ren)) yang jin dang hai ;".
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (((wang yong) or (wang yang)))) ya ((hua gene) OR (hua ren)) yang jin dang hai ;*.