Perhaps you should try some spelling variations:
jiu congo » jiu cong, du congo, eic congo
dong sink » dong sin, dong bin, dong ping
congo shu » cong shu
hua rene » hua ren, juan rene
rene yan » ren yan, rene ten, see yan
yan jiu » yang jie, yang jin, pang jiu
wang » wing, wan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((wang OR lang) yan) or (dong sink)) ya hua rene yan jiu congo shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((wang OR lang) yan) OR (dong sink)) ya hua rene yan jiu congo shu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((wang OR lang) yan) or (dong sink)) ya hua rene yan jiu congo shu ;".
• Adding a wildcard symbol may retrieve word variants: (((wang OR lang) yan) or (dong sink)) ya hua rene yan jiu congo shu ;*.