Perhaps you should try some spelling variations:
done hoang » dong hoang
hua gene » human gene, a gene, hua ren
wang lei » wang wei, wang fei, zhang lei
yang jin » yang jie, yang jun, ying jin
hong shu » cong shu, tong shui, wong shiu
wang li » wang lin, tang li, wang di
ayala » ayana

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: done hoang ayala hua gene ((((wang li) OR (wang lei))) OR (yang jin)) hong shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "done hoang ayala hua gene ((((wang li) OR (wang lei))) or (yang jin)) hong shu ;~".
• Adding a wildcard symbol may retrieve word variants: done hoang ayala hua gene ((((wang li) OR (wang lei))) or (yang jin)) hong shu ;*.