Perhaps you should try some spelling variations:
hua irene » hua ren
john wong » john bonn
john song » john bonn, john ngosong
wang anh » dang anh, wang yang, wang yan
anh tuan » anh tran, dinh tuan, oanh tran
hua chen » jui chen, yu chen, hua ren
a chen » ta chen, _ chen, n 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 anh tuan ((hua irene) or (((hua chen) OR (a chen)))) yang ((john wong) or (john song)) sam ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang anh tuan ((hua irene) OR (((hua chen) OR (a chen)))) yang ((john wong) OR (john song)) sam ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang anh tuan ((hua irene) or (((hua chen) OR (a chen)))) yang ((john wong) or (john song)) sam ;*".