Perhaps you should try some spelling variations:
human gender » bhutan gender, human gene, german gender
wang yang » wang yan, wang liang, wang yanling
yan human » than human, non human, von human
yang yan » yang yang, wang yan, yang fan
yang jui » yang judy, yang yi
yang xi » yang yi
shin » skin, sein, thin

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 human gender ((yang di) or (((yang jui) or (yang xi)))) song shin ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang yan human gender ((yang di) OR (((yang jui) OR (yang xi)))) song shin ;.
• Adding a wildcard symbol may retrieve word variants: wang yang yan human gender ((yang di) or (((yang jui) or (yang xi)))) song shin ;*.