Perhaps you should try some spelling variations:
german gender » german lander, germany under, german border
human gender » bhutan gender, human gene, human genome
kang minah » sang minh
yang yang » wang yang, wang yan
yang jui » yang judy, yang di, yang xi
cong seo » hong seo, cong shu, cong sun
cong van » congo can, duong van, cong sun

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

• Performing a fuzzy search may retrieve terms with similar spellings: yang yang jui ((human gender) OR (german gender)) kang minah ((cong seo) or (cong van)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang yang jui ((human gender) OR (german gender)) kang minah ((cong seo) OR (cong van)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yang yang jui ((human gender) OR (german gender)) kang minah ((cong seo) or (cong van)) ;".
• Adding a wildcard symbol may retrieve word variants: yang yang jui ((human gender) OR (german gender)) kang minah ((cong seo) or (cong van)) ;*.