Perhaps you should try some spelling variations:
human gender » bhutan gender, human gene, german gender
wang yang » wang yan, wang liang, wang yanling
hua gene » human gene, a gene, hua ren
yang min » yang mind, yang jin, tang min
yang jie » yang jin, yang di, yang jui
hong hai » shang hai, zhong tai, dang hai
yang yi » yang di, yang xi, yang jui

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 yi ((hua gene) or (human gender)) ((yang min) or (yang jie)) hong hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang yi ((hua gene) OR (human gender)) ((yang min) OR (yang jie)) hong hai ;.
• Adding a wildcard symbol may retrieve word variants: wang yang yi ((hua gene) or (human gender)) ((yang min) or (yang jie)) hong hai ;*.