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

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 ((tuan hua) or (tan hua)) dan ((young john) or (((wong john) OR (kong john)))) wong sar ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang anh ((tuan hua) OR (tan hua)) dan ((young john) OR (((wong john) OR (kong john)))) wong sar ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang anh ((tuan hua) or (tan hua)) dan ((young john) or (((wong john) OR (kong john)))) wong sar ;".
• Adding a wildcard symbol may retrieve word variants: wang anh ((tuan hua) or (tan hua)) dan ((young john) or (((wong john) OR (kong john)))) wong sar ;*.