Perhaps you should try some spelling variations:
human gender » bhutan gender, german gender, human genome
human gene » human genome, human bone, human genetic
yuan wang » yan wang, yuan kang, yuan chang
long hail » long haul, long tail, long chain
wai yuan » wai yan, wei yuan, wai fun
mung sau » aung san, wong sau

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

• Performing a fuzzy search may retrieve terms with similar spellings: wai yuan wang ((human gene) OR (human gender)) long hail mung sau ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wai yuan wang ((human gene) OR (human gender)) long hail mung sau ;".
• Adding a wildcard symbol may retrieve word variants: wai yuan wang ((human gene) OR (human gender)) long hail mung sau ;*.