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

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan yan ((((yang jui) or (yang xi))) or (yang july)) hyun ((song ming) OR (gong min)) ton van ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan ((((yang jui) OR (yang xi))) OR (yang july)) hyun ((song ming) OR (gong min)) ton van ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yan ((((yang jui) or (yang xi))) or (yang july)) hyun ((song ming) OR (gong min)) ton van ;*".