Perhaps you should try some spelling variations:
gender yaws » gender laws, gender als, gender das
yaws cases » laws case
cases case » causes case, case case, crises case
wang yong » wang yang, wang hyoung, wang yan
i gender » 2 gender, 3 gender, 1 gender
case sub » case sums, case s0
chun i » chun yi, chun _, 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 yanling) or (wang yong)) chun i gender yaws cases case sub ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yanling) OR (wang yong)) chun i gender yaws cases case sub ;.
• Adding a wildcard symbol may retrieve word variants: ((wang yanling) or (wang yong)) chun i gender yaws cases case sub ;*.