Perhaps you should try some spelling variations:
wang dinh » wang jing, wang ning, sang minh
dinh tuan » binh thuan, dinh tung, anh tuan
hua irene » hua ren
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 dinh tuan ((hua irene) OR (hua chen)) yang john wong sam ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang dinh tuan ((hua irene) OR (hua chen)) yang john wong sam ;*".