Perhaps you should try some spelling variations:
john ngosong » john song
yang john » young john, king john, yang jin
wang oanh » wang yang, dang anh, wang ban
tran hua » tan hua, tuan hua, tran duc
ren yang » ren yan, chen yang, dan yang
hua ren » hua chen
sam » same, sham, syam

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) OR (wang yan)) tran hua ren yang john ngosong sam ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang oanh) OR (wang yan)) tran hua ren yang john ngosong sam ;".
• Adding a wildcard symbol may retrieve word variants: ((wang oanh) OR (wang yan)) tran hua ren yang john ngosong sam ;*.