Perhaps you should try some spelling variations:
yang wang » yang yang, yan wang, yang guang
tonga eiu » kong eiu
dong ping » dong sin, dong bin, dong jung
wai yang » wai yan, wei yang, wang yang
yu cheng » _ cheng
ying jin » yang jin, jing ji, yang jie
yu chen » yi chen, yulu chen, jui chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: wai yang wang ((yu cheng) OR (yu chen)) ying jin ((cong shu) or (((tonga eiu) or (dong ping)))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wai yang wang ((yu cheng) OR (yu chen)) ying jin ((cong shu) OR (((tonga eiu) OR (dong ping)))) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wai yang wang ((yu cheng) OR (yu chen)) ying jin ((cong shu) or (((tonga eiu) or (dong ping)))) ;*".