Perhaps you should try some spelling variations:
chang ch'un » chang chen, chang hsun
chang chuan » chung chuan, chen chuan, chang chen
dong huang » dong hoang, dang hung, dong hua
gene wang » gene bank, wen wang
tong shui » tong hui, cong shu, gong hui
hong shu » cong shu, wong shiu, hong seo

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: dong huang ((chang ch'un) OR (chang chuan)) gene wang yanling ((hong shu) or (tong shui)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong huang ((chang ch'un) OR (chang chuan)) gene wang yanling ((hong shu) OR (tong shui)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong huang ((chang ch'un) OR (chang chuan)) gene wang yanling ((hong shu) or (tong shui)) ;*".