Perhaps you should try some spelling variations:
ghana china » china china, ghana ghana
seung tang » leung tang
china kwan » ching kwan, china kai, china wang
lung can » hung cam
yang jie » yang jin, yang di, yang jui
yang jun » yang jui, pang jun, yang jin
gong hui » tong hui, tong shui, wang hui

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: ((seung tang) OR (lung can)) ghana china kwan ((yang jie) OR (yang jun)) gong hui ;~.
• Adding a wildcard symbol may retrieve word variants: ((seung tang) or (lung can)) ghana china kwan ((yang jie) or (yang jun)) gong hui ;*.