Perhaps you should try some spelling variations:
juan rene » juan meng, juan rana
sang minh » kang minah, anh minh, song min
congo can » congo call, cong van, congo a
wing yan » wang yan, wing ian, wang yang
wing tan » wing ian, liang tan, hong tan
yan minh » tuan minh, yang mind, yuan ming
yi juan » y juan

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: ((wing yan) OR (wing tan)) yi juan rene ((yan minh) OR (sang minh)) congo can ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wing yan) OR (wing tan)) yi juan rene ((yan minh) or (sang minh)) congo can ;~".
• Adding a wildcard symbol may retrieve word variants: ((wing yan) OR (wing tan)) yi juan rene ((yan minh) or (sang minh)) congo can ;*.