Perhaps you should try some spelling variations:
young john » kong john, wong john, young jean
hua irene » hua ren
zhang yan » zhang fan, zhang jian, wang yan
yang john » king john, yang jin, yang jun
lang yan » wang yan, wang yang, yang yang
yuan hua » tuan hua, yuan hui, tan hua
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: ((lang yan) OR (zhang yan)) yuan hua irene ((yang john) or (young john)) wong sam ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((lang yan) OR (zhang yan)) yuan hua irene ((yang john) OR (young john)) wong sam ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((lang yan) OR (zhang yan)) yuan hua irene ((yang john) or (young john)) wong sam ;".
• Adding a wildcard symbol may retrieve word variants: ((lang yan) OR (zhang yan)) yuan hua irene ((yang john) or (young john)) wong sam ;*.