Perhaps you should try some spelling variations:
dong skin » dong sin, dong bin, dof skin
hua gene » human gene, hua ren, hy5 gene
yang jin » yang jie, yang jun, shang jin
ying jin » jing ji, yang jie
long shu » cong shu, tong shui, long du
a gene » a genre, a gender, a gentle
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 yanling) or (dong skin)) ya ((hua gene) OR (a gene)) ((yang jin) or (ying jin)) long shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yanling) OR (dong skin)) ya ((hua gene) OR (a gene)) ((yang jin) OR (ying jin)) long shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yanling) or (dong skin)) ya ((hua gene) OR (a gene)) ((yang jin) or (ying jin)) long shu ;*".