Perhaps you should try some spelling variations:
wang nan » wang yan, wang ban, wang dan
gan guan » yan guan, quan guan, fan guon
guan tan » huan t'an, tan tan
tan ying » fan ying, ran ying, tan yang
ying jin » yang jin, jing ji, yang jie
nan gan » nan yan
long w » long _, hong w, long 2

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 nan gan guan tan ying jin ((dang hai) OR (long w)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang nan gan guan tan ying jin ((dang hai) or (long w)) ;*.