Perhaps you should try some spelling variations:
wang xiuyan » wang xinyan, wang xuan
ming cong » minh cong, ming kong, ming code
wang xia » fang xia, wang qiao, wang xuan
fang van » frans van, trang van, fang yuan
cong zhi » zhong zhi, wang zhi, cong shu
der can » der cap, der cas, der call
der ca » der cap, der cas, der cd

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang xia) or (wang xiuyan)) fang van ((der can) or (der ca)) ming cong zhi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang xia) OR (wang xiuyan)) fang van ((der can) OR (der ca)) ming cong zhi ;.
• Adding a wildcard symbol may retrieve word variants: ((wang xia) or (wang xiuyan)) fang van ((der can) or (der ca)) ming cong zhi ;*.