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nganh khong » nganh cong, nhanh chong, nganh nong
khong hoc » khung hoc, thong hoc, khong thuoc
cach thoi » cac thoi, cach thuc, cach noi
hoc nganh » hoc nhanh
nhan dan » gian dan, nhan tai
phan dau » phan tu, hang dau
cong hoc » dong hoc, cong hoa, cong coc
cuu cong » cua cong, thu cong, cac cong
thoi dai » hoc dai, hoi dap, hoi dan
hai van » thai van, ha van, hai tan
tu cach » tu cac
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi