Perhaps you should try some spelling variations:
how gender » do gender
gender yan » gender a, gender am, gender das
dong yang » dong hoang, wang yang, yang yang
yang asia » dan asia, yang anda, lng asia
wong sam » wong sau, wong lai, kong sar
hong ghi » zhong zhi, hong g, hong hai
yan jiu » yang jie, yang jin, pang jiu

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong yang asia how gender yan jiu ((wong sam) or (hong ghi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong yang asia how gender yan jiu ((wong sam) OR (hong ghi)) ;.
• Adding a wildcard symbol may retrieve word variants: dong yang asia how gender yan jiu ((wong sam) or (hong ghi)) ;*.