Perhaps you should try some spelling variations:
john ngosong » john song
oanh tran » anh tran, binh tran
yang john » young john, king john, yang jin
anh tuan » anh tran, dinh tuan
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.

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