Perhaps you should try some spelling variations:
young john » kong john, young jean
wong john » wrong john, kong john, longo john
wang anh » dang anh, wang yang, wang yan
yuan hui » yuan fei, jaan hui, tuan hua
wong sar » kong sar, wong sau, wong lai
wong sam » wong sau, wong lai, kong sar
tan hua » tuan hua, wang hua, tan chia

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 ((yuan hui) or (tan hua)) dan ((young john) or (wong john)) ((wong sar) or (wong sam)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang anh ((yuan hui) OR (tan hua)) dan ((young john) OR (wong john)) ((wong sar) OR (wong sam)) ;.
• Adding a wildcard symbol may retrieve word variants: wang anh ((yuan hui) or (tan hua)) dan ((young john) or (wong john)) ((wong sar) or (wong sam)) ;*.