Perhaps you should try some spelling variations:
ghana china » china china, ghana ghana
china zhang » china chang, cheng zhang, chin chang
kong ghana » kong china, kong hang
yang jun » yang jui, pang jun, yang jin
wang hui » wang hua, wang zhi, wang wei
yang xi » yang di, yang yi, yang jui
yeung » young

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: yeung kong ghana china zhang ((yang jun) OR (yang xi)) wang hui ;~.
• Adding a wildcard symbol may retrieve word variants: yeung kong ghana china zhang ((yang jun) or (yang xi)) wang hui ;*.