Perhaps you should try some spelling variations:
long thanh » luong thanh, long han, long trinh
cao china » mao china, lao china, macao china
china two » china's two, china top
wang dan » wang yan, wang ban, wang yidan
two yong » foo yong, tan yong, tee yong
hong hai » shang hai, zhong tai, dang hai
dan cao » dan cao's, dong cao

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "wang dan cao china two yong kim ((long thanh) OR (hong hai)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang dan cao china two yong kim ((long thanh) OR (hong hai)) ;*.