Perhaps you should try some spelling variations:
yuan wang » yan wang, yuan kang, yuan chang
jiu congo » jiu cong, du congo, eic congo
congo shu » cong shu
tuan hua » tuan vu, yuan hui
rene yan » ren yan, rene ten, see yan
tan hua » wang hua, tan chia, tan puay
yan jiu » yang jie, yang jin, pang jiu

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

• Performing a fuzzy search may retrieve terms with similar spellings: yuan wang ((tan hua) OR (tuan hua)) rene yan jiu congo shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yuan wang ((tan hua) OR (tuan hua)) rene yan jiu congo shu ;".
• Adding a wildcard symbol may retrieve word variants: yuan wang ((tan hua) OR (tuan hua)) rene yan jiu congo shu ;*.