Perhaps you should try some spelling variations:
tong shui » cong shu, gong hui
yan yong » yan cong, tan yong, wang yong
hua gene » human gene, hua ren
hy5 gene » 8.5 gene
yang jin » yang jie, yang jun, ying jin
tong hui » wang hui
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan yong ((((hua gene) OR (hy5 gene))) OR (a gene)) yang jin ((tong shui) OR (tong hui)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan yong ((((hua gene) OR (hy5 gene))) or (a gene)) yang jin ((tong shui) or (tong hui)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan yong ((((hua gene) OR (hy5 gene))) or (a gene)) yang jin ((tong shui) or (tong hui)) ;*.