Perhaps you should try some spelling variations:
young john » kong john, wong john, young jean
wang oanh » wang yan, wang yang, dang anh
oanh tran » anh tran, anh tuan, binh tran
yang john » king john, yang jin, yang jun
jui chen » yi chen
bonn sau » bonn a, bonn am, bonn auf
hua ren » hua chen

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 ren) or (jui chen)) ((yang john) OR (young john)) bonn sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang oanh tran ((hua ren) OR (jui chen)) ((yang john) OR (young john)) bonn sau ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang oanh tran ((hua ren) or (jui chen)) ((yang john) OR (young john)) bonn sau ;".
• Adding a wildcard symbol may retrieve word variants: wang oanh tran ((hua ren) or (jui chen)) ((yang john) OR (young john)) bonn sau ;*.