Perhaps you should try some spelling variations:
china tan » china top, china two, china taiwan
tan yang » dan yang, tan ying, tan yong
yang lin » yang jin, wang lin, yang li
long han » long chain, long thanh, long haul
hong hai » shang hai, zhong tai, dang hai
nan can » man can
nan yan » nan ya, wang yan, qian yan

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 can) OR (nan yan)) china tan yang lin ((long han) OR (hong hai)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((nan can) OR (nan yan)) china tan yang lin ((long han) or (hong hai)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((nan can) OR (nan yan)) china tan yang lin ((long han) or (hong hai)) ;*.