Perhaps you should try some spelling variations:
yang july » yang judy, yang jun
hyun jong » hyun song, yun jang, yun song
yang jui » yang judy, yang di, yang xi
jong min » gong min, song min, song ming
wan yan » wang yan, nan yan, wai yan
yang yi » yang di, yang xi
non van » non bank
ton van » tran van, cong van, teun van

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: wan yan ((((yang jui) OR (yang yi))) OR (yang july)) hyun jong min ((non van) OR (ton van)) ;~.
• Adding a wildcard symbol may retrieve word variants: wan yan ((((yang jui) or (yang yi))) or (yang july)) hyun jong min ((non van) or (ton van)) ;*.