Perhaps you should try some spelling variations:
gender based » gender bias
based raise » based rise, based risk, based case
raise more » raise morale, raise money, cause more
more small » korea small, some small, one small
yang yang » wang yang, wang yan
yang yan » wang yan, yang fan, yang yao

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yang yan) or (yang yang)) a gender based raise more small ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yang yan) OR (yang yang)) a gender based raise more small ;*.