Perhaps you should try some spelling variations:
gender class » gender biases, gender bias
class malta » class multi, class matter
wang wang » wang yang, wang liang, wang yan
malta die » falta de, data die, malta eiu
wang dan » wang yan, wang ban, wang yidan
z gender » 2 gender, 3 gender, 1 gender
die spur » der spur

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: wang wang dan z gender class malta die spur ;*.