Perhaps you should try some spelling variations:
wang wang » wang yang, wang liang, wang yan
wang yong » wang yang, wang hyoung, wang yan
tuan hua » tuan vu, yuan hui
yang jin » yang jie, yang jun, ying jin
long shu » cong shu, tong shui, long du
tan hua » wang hua, tan chia, tan puay
yan jiu » yang jie, 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: ((wang wang) or (wang yong)) ((tan hua) OR (tuan hua)) ren ((yan jiu) or (yang jin)) long shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang wang) OR (wang yong)) ((tan hua) OR (tuan hua)) ren ((yan jiu) OR (yang jin)) long shu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang wang) or (wang yong)) ((tan hua) OR (tuan hua)) ren ((yan jiu) or (yang jin)) long shu ;".
• Adding a wildcard symbol may retrieve word variants: ((wang wang) or (wang yong)) ((tan hua) OR (tuan hua)) ren ((yan jiu) or (yang jin)) long shu ;*.