Perhaps you should try some spelling variations:
hang china » han china, change china, ghana china
china kwan » ching kwan, china kai, china wang
lung tang » leung tang, gung thang, tang tang
lung can » hung cam
yang jui » yang judy, yang di, yang yi
gong hui » tong hui, tong shui, wang hui
yang xi » yang di, yang yi

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: ((lung tang) OR (lung can)) hang china kwan ((yang xi) OR (yang jui)) gong hui ;~.
• Adding a wildcard symbol may retrieve word variants: ((lung tang) or (lung can)) hang china kwan ((yang xi) or (yang jui)) gong hui ;*.