Perhaps you should try some spelling variations:
gender class » gender biases, gender bias
gender laws » gender law, gendered laws, gender lens
wang liang » wang yang
liang chun » liang choon, liang sun, liang zhu
gender low » gender law, gender labor
take based » case based, game based, care based
based saul » based fault, based small, based soil
chun h » chung h, chun _, chun i

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 chun h ((gender low) or (((gender laws) or (gender class)))) take based saul ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang liang chun h ((gender low) OR (((gender laws) OR (gender class)))) take based saul ;.
• Adding a wildcard symbol may retrieve word variants: wang liang chun h ((gender low) or (((gender laws) or (gender class)))) take based saul ;*.