Perhaps you should try some spelling variations:
wang heyong » wang shiyong, wang hyoung, wang yong
van thanh » tran thanh, phan thanh, lam thanh
john song » john bonn, john ngosong
john wong » john bonn
tong shui » tong hui, cong shu, gong hui
jae song » jae yong, jie song, jae young
yi tong » yi rong, y tong, hui tong

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang heyong van thanh ((jae song) or (((john song) OR (john wong)))) yi tong shui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang heyong van thanh ((jae song) OR (((john song) OR (john wong)))) yi tong shui ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang heyong van thanh ((jae song) or (((john song) OR (john wong)))) yi tong shui ;*".