Perhaps you should try some spelling variations:
human gender » bhutan gender, german gender, human genome
wang lihong » wang liang, wang shiyong
human gene » human genome, human bone, human genetic
yang july » yang judy, yang jui, yang jun
shang hai » shang kai, dang hai, chang ha
lihong 2 » long 2

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang lihong 2 ((human gene) or (human gender)) ((yang di) or (yang july)) shang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang lihong 2 ((human gene) OR (human gender)) ((yang di) OR (yang july)) shang hai ;.
• Adding a wildcard symbol may retrieve word variants: wang lihong 2 ((human gene) or (human gender)) ((yang di) or (yang july)) shang hai ;*.