Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
iii gender » ii gender, i gender, iii gene
das bilan » des bilan, des bilans, das bild
die young » rudie young, live young, kim young
bias die » bias due, bias time, bias der
young hr » young er, young _, young 4

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 ((das bilan) OR (yang liang)) iii gender bias die young hr ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((das bilan) or (yang liang)) iii gender bias die young hr ;*.