Perhaps you should try some spelling variations:
gender class » gender biases, gender bias
zum gender » um gender, zum ende
class than » less than, class taiwan
than money » than one
money all » money small, money a, money el
yang jun » yang jui, yang jin, yang judy
pang jun » yang jui
ying jin » yang jin, jing ji, yang jie

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: yang ((((yang jun) OR (pang jun))) OR (ying jin)) zum gender class than money all ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yang ((((yang jun) OR (pang jun))) or (ying jin)) zum gender class than money all ;~".
• Adding a wildcard symbol may retrieve word variants: yang ((((yang jun) OR (pang jun))) or (ying jin)) zum gender class than money all ;*.