Perhaps you should try some spelling variations:
chang ch'un » chang chen, chang hsun
chang chuan » chung chuan, chen chuan, chang chen
dang hung » dang cuong, fung hung, ming hung
gene wang » gene bank, wen wang
wong shiu » wong siu, cong shu, song shin
hong shu » cong shu, tong shui, hong seo

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: dang hung ((chang ch'un) OR (chang chuan)) gene wang yanling ((hong shu) OR (wong shiu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dang hung ((chang ch'un) OR (chang chuan)) gene wang yanling ((hong shu) or (wong shiu)) ;~".
• Adding a wildcard symbol may retrieve word variants: dang hung ((chang ch'un) OR (chang chuan)) gene wang yanling ((hong shu) or (wong shiu)) ;*.