Perhaps you should try some spelling variations:
human gene » human genome, human gender, human bone
yang jie » yang jin, yang di, yang jui
2 human » 3 human
yang yi » yang di, yang jui
yang xi » yang di, yang jui
hong ng » hong kong, hong jong, hong hong
hong g » hong w, hong 7, hong a
so 2 » so _, co 2, o 2
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 so 2 human gene ((yang jie) OR (((yang yi) OR (yang xi)))) ((hong g) OR (hong ng)) ;~.
• Adding a wildcard symbol may retrieve word variants: done so 2 human gene ((yang jie) or (((yang yi) or (yang xi)))) ((hong g) or (hong ng)) ;*.