Perhaps you should try some spelling variations:
china aids » china air, china adb, china als
tan china » tuan china, than china, can china
yang jui » yang judy, yang di, yang yi
wang hui » wang hua, wang zhi, wang wei
tan tan » tas tan, tin tan, tang tang
yang xi » yang di, yang yi
hong » long

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hong tan tan china aids ((yang xi) or (yang jui)) wang hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hong tan tan china aids ((yang xi) OR (yang jui)) wang hui ;.
• Adding a wildcard symbol may retrieve word variants: hong tan tan china aids ((yang xi) or (yang jui)) wang hui ;*.