Perhaps you should try some spelling variations:
china korea » china more
wang yang » wang liang, wang yanling
wang jing » wang ning, wang liang, wang yong
korea eiu » korea pei, korea pim
john kong » john king, john song, john wong
eiu john » liu john, binu john, eric john
kong siu » kong eiu, wong siu, dong sin

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 yang) OR (wang yan))) OR (wang jing)) can china korea eiu john kong siu ;~.
• Adding a wildcard symbol may retrieve word variants: ((((wang yang) or (wang yan))) or (wang jing)) can china korea eiu john kong siu ;*.