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

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

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