Perhaps you should try some spelling variations:
jeong yeon » jeong hyeok, jeang yean, seung yeon
xuan thang » yuan chang, xiulan zhang
dong xuan » dong xiao, tung xuan, don juan
thang hai » shang hai, thang pham, dang hai
gene tang » gene bank
hai gene » a gene, a1 gene, hai ren
tang min » chang min, sang minh, yang mind
jeong su » jeong _, jeong mi, 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 xuan thang hai gene tang min ((jeong su) or (jeong yeon)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong xuan thang hai gene tang min ((jeong su) OR (jeong yeon)) ;*.