Perhaps you should try some spelling variations:
young john » kong john, wong john, young jean
wang oanh » wang yan, wang yang, dang anh
yang john » king john, yang jun, kong john
tran hua » tuan hua, tran duc
yang jin » yang jie, yang jun, ying jin
bonn sam » bonn am, bonn zum, bonn a
tan hua » tuan hua, wang hua, tan chia

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang oanh ((tran hua) or (tan hua)) chen ((((yang john) or (yang jin))) or (young john)) bonn sam ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang oanh ((tran hua) OR (tan hua)) chen ((((yang john) OR (yang jin))) OR (young john)) bonn sam ;.
• Adding a wildcard symbol may retrieve word variants: wang oanh ((tran hua) or (tan hua)) chen ((((yang john) or (yang jin))) or (young john)) bonn sam ;*.