Perhaps you should try some spelling variations:
yuan meng » juan meng, yuan cheng, yuan kang
yuan ming » yuan ting, kian ming, tuan minh
wong john » wrong john, kong john, longo john
john kong » john king, john song, john wong
kong siu » kong eiu, wong siu, dong sin
nan yan » nan ya, wang yan, qian yan
wang » wing

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 OR wan) OR lang) nan yan ((yuan meng) OR (yuan ming)) wong john kong siu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang or wan) or lang) nan yan ((yuan meng) OR (yuan ming)) wong john kong siu ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang or wan) or lang) nan yan ((yuan meng) OR (yuan ming)) wong john kong siu ;*.