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

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