Perhaps you should try some spelling variations:
china tan » china top, china taiwan
china two » china's two, china top
wang dan » wang yan, wang ban, wang yidan
yang lin » yang jin, yang li, yang liang
wang lin » wang li, wang qin, wang limin
hong hai » shang hai, zhong tai, dang hai
dan can » dan cao, dan con, man can

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