Perhaps you should try some spelling variations:
gender based » gender bias
gene based » genre based, genome based, geneva based
some based » home based, score based, slope based
yang yang » wang yang, wang yan
aid hong » aid how, aid homi, aid non
hong ghi » zhong zhi, hong g, hong hai
judy » july

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

• Performing a fuzzy search may retrieve terms with similar spellings: (wan or wing) yang yang judy ((((gene based) OR (gender based))) or (some based)) aid hong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wan OR wing) yang yang judy ((((gene based) OR (gender based))) OR (some based)) aid hong ghi ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wan or wing) yang yang judy ((((gene based) OR (gender based))) or (some based)) aid hong ghi ;*".