Perhaps you should try some spelling variations:
gender biases » gender bias, gender based
gender class » gender bias
money really » money all
money small » money all, money somalia, money simple
yang yang » wang yang, wang yan
yang jin » yang jie, yang jun, ying jin
jin o » jin _

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

• Performing a fuzzy search may retrieve terms with similar spellings: yang yang jin o ((gender class) or (gender biases)) thanh ((money really) OR (money small)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang yang jin o ((gender class) OR (gender biases)) thanh ((money really) OR (money small)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yang yang jin o ((gender class) or (gender biases)) thanh ((money really) OR (money small)) ;*".