Perhaps you should try some spelling variations:
german gender » german lander, germany under, german border
gender tang » gender tag, gender talk, gender task
yang yang » wang yang, wang yan
tang amin » tang min
amin hong » min hong, among hong, tin hong
hong gang » gong gang, hong wang, hong kong
yang yi » yang xi, yang jui
ng 2 » nr 2, g 2, gg 2
n 2 » nr 2

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: ((((yang yang) OR (yang yi))) OR (yang di))((ng 2) OR (n 2)) german gender tang amin hong gang ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yang yang) or (yang yi))) or (yang di))((ng 2) OR (n 2)) german gender tang amin hong gang ;~".
• Adding a wildcard symbol may retrieve word variants: ((((yang yang) or (yang yi))) or (yang di))((ng 2) OR (n 2)) german gender tang amin hong gang ;*.