Perhaps you should try some spelling variations:
human gender » bhutan gender, human gene, german gender
does human » des human, das human, does humanity
when does » where does, when do
yang jie » yang jin, yang di, yang jui
yang yi » yang di, yang jui
yang xi » yang di, yang jui
hong g » hong ng, hong w, hong 7
done » one

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: done when does human gender ((((yang jie) OR (yang yi))) OR (((yang xi) OR (yang judy)))) hong g ;~.
• Adding a wildcard symbol may retrieve word variants: done when does human gender ((((yang jie) or (yang yi))) or (((yang xi) or (yang judy)))) hong g ;*.