Perhaps you should try some spelling variations:
than china » tuan china, wuhan china, can china
han china » hang china, can china, dan china
tan yong » tan hong, tan kong, tan yang
yong jin » yang jin, ying jin, song jin
song hai » shang hai, dang hai, long han
hong hai » shang hai, zhong tai, dang hai
wang » wing, wan, lang

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 yanling ((than china) OR (han china)) tan yong jin ((song hai) OR (hong hai)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yanling ((than china) or (han china)) tan yong jin ((song hai) OR (hong hai)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yanling ((than china) or (han china)) tan yong jin ((song hai) OR (hong hai)) ;*.