Perhaps you should try some spelling variations:
wang yuan » wang yuhan, wang yan, fang yuan
yuan wang » yan wang, yuan kang, yuan chang
lan minh » tuan minh, land mine, sang minh
gong hui » tong hui, tong shui, wang hui
li lai » li lan, yi lai
li tai » lim tai
li li » li lin, li l, li lu
cong » congo, long, hong

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wang yuan wang ((((li lai) OR (li tai))) OR (li li)) lan minh ((cong shu) OR (gong hui)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yuan wang ((((li lai) OR (li tai))) or (li li)) lan minh ((cong shu) or (gong hui)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yuan wang ((((li lai) OR (li tai))) or (li li)) lan minh ((cong shu) or (gong hui)) ;*.