Perhaps you should try some spelling variations:
jeong hyeok » jeong dahyeon
dong yuan » don juan, dong hua, dong nan
yuan dang » yuan kang, yuan wang, yuan chang
gene tang » gene bank
jeong seo » jeong yeon, hong seo, jeong su
hai gene » a gene, a1 gene, hai ren
tang min » chang min, sang minh, yang mind

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong yuan dang hai gene tang min ((jeong seo) or (jeong hyeok)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong yuan dang hai gene tang min ((jeong seo) OR (jeong hyeok)) ;*.