Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
nghien cua » nghien cuu, nghiep cua, nghiep vua
nganh khoa » nganh hoa, doanh khoa, anh khoa
dung khoa » dung cho
ban thanh » ban hanh, ban hang
can thuc » dan thuc, van thuc, cay thuc
cua dung » cua dang, cua dong, qua dung
hoi ban » hoi dan, hoi bai, doi ban
tu can » tu ban, tu cac, thu canh
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu can thuc vat, nghien cua dung khoa ((nganh khoa) or (nganh khong)) hoc xa hoi ban thanh san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu can thuc vat, nghien cua dung khoa ((nganh khoa) OR (nganh khong)) hoc xa hoi ban thanh san.
• Adding a wildcard symbol may retrieve word variants: tu can thuc vat, nghien cua dung khoa ((nganh khoa) or (nganh khong)) hoc xa hoi ban thanh san*.