Perhaps you should try some spelling variations:
human gender » bhutan gender, human gene, german gender
ying chang » jin chang, yi chang, yin hang
sheng john » chen john, sheng jou
wang ying » wang yang, wang yong, wang jing
john song » john wong, john bonn, john ngosong
song min » song ming, gong min, jong min
hua ren » hua chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ying chang ((hua ren) or (((human genome) or (human gender)))) sheng john song min ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ying chang ((hua ren) OR (((human genome) OR (human gender)))) sheng john song min ;.
• Adding a wildcard symbol may retrieve word variants: wang ying chang ((hua ren) or (((human genome) or (human gender)))) sheng john song min ;*.