Perhaps you should try some spelling variations:
based salt » based sat, based small, based smart
based soil » based social, based school
wang yong » wang yang, wang hyoung, wang yan
yong chun » wong chun, fong chan, jong chan
low trade » new trade
i gender » 2 gender, 1 gender, 4 gender
3 gender » 2 gender

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yong chun ((i gender) or (3 gender)) low trade ((based salt) or (based soil)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yong chun ((i gender) OR (3 gender)) low trade ((based salt) OR (based soil)) ;.
• Adding a wildcard symbol may retrieve word variants: wang yong chun ((i gender) or (3 gender)) low trade ((based salt) or (based soil)) ;*.