Perhaps you should try some spelling variations:
jeong yeon » jeong hyeok, jeang yean, seung yeon
minh jeong » min jeong, minh cong
yuan ting » huang ting, yuan kang, yuan lin
yuan ming » kian ming, tuan minh, chan ming
gene sang » lee sang, gene bank
sang minh » kang minah, anh minh, song min
a1 gene » a gene, 1 gene, 11 gene

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 ting) OR (yuan ming)) a1 gene sang minh jeong yeon ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong ((yuan ting) OR (yuan ming)) a1 gene sang minh jeong yeon ;*".