Perhaps you should try some spelling variations:
hua irene » hua ren
wing john » king john, wrong john, kong john
wong john » wrong john, kong john, longo john
kong sara » kong sar
yan tuan » yan guan, yan yuan, anh tuan
tuan hua » tan hua, tuan vu, yuan hui
von sa » von sam, von sap, von sl
wang » 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 hua irene ((wing john) OR (wong john)) ((von sa) or (kong sara)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan tuan hua irene ((wing john) OR (wong john)) ((von sa) OR (kong sara)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan tuan hua irene ((wing john) OR (wong john)) ((von sa) or (kong sara)) ;*".