Perhaps you should try some spelling variations:
german gender » german lander, germany under, german border
gender change » gender age
change minh » change minor, change making, change marine
cong seo » hong seo, cong sun, von seo
yang xi » yang di, yang yi, yang jui
yang i » yang di, yang yi, yang li

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yang i) OR (yang xi)) german gender change minh ((cong seo) or (cong shu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yang i) OR (yang xi)) german gender change minh ((cong seo) OR (cong shu)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yang i) OR (yang xi)) german gender change minh ((cong seo) or (cong shu)) ;*".