Perhaps you should try some spelling variations:
wuhan china » yunnan china
tuan china » can china, taiwan china, yunnan china
wang yang » wang yan, wang yanling
yang ban » yang fan, wang ban, yang dean
kim song » kim young, kim eung
ban kim » tan kim, hwan kim, kang kim
star » start, stay

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 liang) OR (wang yang)) ((wuhan china) OR (tuan china)) yang ban kim song star ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang liang) or (wang yang)) ((wuhan china) OR (tuan china)) yang ban kim song star ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang liang) or (wang yang)) ((wuhan china) OR (tuan china)) yang ban kim song star ;*.