Perhaps you should try some spelling variations:
gender class » gender biases, gender bias
class ghana » class china
ghana money » guiana money, guyana money, china money
money small » money all, money somalia, money really
wang liang » wang yang
m gender » um gender, 2 gender, 3 gender

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang liang) or (wang yan)) jan m gender class ghana money small ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang liang) OR (wang yan)) jan m gender class ghana money small ;.
• Adding a wildcard symbol may retrieve word variants: ((wang liang) or (wang yan)) jan m gender class ghana money small ;*.