Perhaps you should try some spelling variations:
longo john » kong john, wong john
yang john » young john, king john, yang jin
hua irene » hua ren
yan tuan » yan guan, yan yuan, can turn
anh tuan » anh tran, dinh tuan, oanh tran
wong sam » wong sau, wong lai, kong sar
wang » wing, wan, lang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yan tuan) OR (anh tuan)) hua irene ((yang john) or (longo john)) wong sam ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan tuan) OR (anh tuan)) hua irene ((yang john) OR (longo john)) wong sam ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan tuan) OR (anh tuan)) hua irene ((yang john) or (longo john)) wong sam ;".
• Adding a wildcard symbol may retrieve word variants: wang ((yan tuan) OR (anh tuan)) hua irene ((yang john) or (longo john)) wong sam ;*.