Perhaps you should try some spelling variations:
wang liang » wang yang
liang ying » liang liying, huang ying, zhang ying
gender one » gender age, under one, gender die
gender das » gender bias, gender data, gender case
ying iii » ying jin
ein kern » einem kern, ii kern
ghi » nghi, ghia

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: wang liang ying iii ((gender one) OR (gender das)) ((ein kern) OR (im kern)) ghi ;~.
• Adding a wildcard symbol may retrieve word variants: wang liang ying iii ((gender one) or (gender das)) ((ein kern) or (im kern)) ghi ;*.