Perhaps you should try some spelling variations:
human gender » bhutan gender, german gender, human genome
human gene » human genome, human bone, human genetic
yang jin » yang jie, yang jun, shang jin
ying jin » jing ji, yang jie
hong hai » shang hai, zhong tai, dang hai
yan zi » yan zhi, yuan zi, ban zi
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan zi ((human gene) or (human gender)) ((yang jin) or (ying jin)) hong hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan zi ((human gene) OR (human gender)) ((yang jin) OR (ying jin)) hong hai ;.
• Adding a wildcard symbol may retrieve word variants: wang yan zi ((human gene) or (human gender)) ((yang jin) or (ying jin)) hong hai ;*.