Perhaps you should try some spelling variations:
kong john » king john, wong john, longo john
xuan hua » tuan hua, xuan thuy, yuan hui
ren kong » tan kong, nan kong, ren weng
wong sam » wong sau, wong lai, von sam
tan hua » tuan hua, wang hua, tan chia
wang » wing, wan, lang
sar » sara, star, saur

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

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