Perhaps you should try some spelling variations:
oanh tran » anh tran, anh tuan
binh tran » binh thanh, binh thang, binh thuan
chen yang » chen rong
yang john » young john, king john, yang jin
john wong » john song, john bonn
hua chen » jui chen, yu chen, a chen
wong sam » wong sau, wong lai, kong sar

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