Perhaps you should try some spelling variations:
human gene » human genome, human gender, human bone
jeong ghi » hong ghi
hoang sy » hoang vu
sy human » why human, key human, 2 human
yang jie » yang jin, yang di, yang jui
ying jin » yang jin, jing ji
jeong mi » jeong _, jeong su, jeong 情

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

• Performing a fuzzy search may retrieve terms with similar spellings: (dong or doing) hoang sy human gene ((yang jie) or (ying jin)) ((jeong ghi) or (jeong mi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (dong OR doing) hoang sy human gene ((yang jie) OR (ying jin)) ((jeong ghi) OR (jeong mi)) ;.
• Adding a wildcard symbol may retrieve word variants: (dong or doing) hoang sy human gene ((yang jie) or (ying jin)) ((jeong ghi) or (jeong mi)) ;*.