Perhaps you should try some spelling variations:
german gender » german lander, germany under, german border
yan german » can germany, a german, war german
wing nan » wing ian, wing tan, jiang nan
yang jui » yang di, yang xi, yang yi
nan yan » nan ya, wang yan, qian yan
yan jiu » yang jie, yang jin, pang jiu

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "wing nan yan german gender ((((yan jiu) OR (yang jui))) OR (yang judy)) cong shu ;~".
• Adding a wildcard symbol may retrieve word variants: wing nan yan german gender ((((yan jiu) OR (yang jui))) OR (yang judy)) cong shu ;*.