Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
hua irene » hua ren
yang john » young john, king john, yang jin
john wong » john song, john bonn
wang anh » wang yan, wang all, wang ban
dang anh » duong anh
a chen » ta chen, _ chen, n chen
lai » laid

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) OR (dang anh))) or (wang yang)) tuan ((hua irene) or (a chen)) yang john wong lai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((wang anh) OR (dang anh))) OR (wang yang)) tuan ((hua irene) OR (a chen)) yang john wong lai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((wang anh) OR (dang anh))) or (wang yang)) tuan ((hua irene) or (a chen)) yang john wong lai ;*".