Perhaps you should try some spelling variations:
gender labor » gendered labour, gender law, border labor
gender laws » gender law, gendered laws, gender class
take based » case based, game based, care based
based saul » based fault, based small, based soil
wang yang » wang yan, wang liang
chun hui » chuang hui, china hui, chun h

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