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thanh chuong » thanh huong, thanh cong, nhanh chong
chuong hoc » chung hoc, thuong hoc, truong hoc
cach thoi » cac thoi, cach thuc, cach noi
hoc thanh » hoc nhanh, hoan thanh, hoc phan
thoi tap » toi tap, hoc tap, thoi dai
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
tu cach » tu cac
hoi van » hoi va, hai van, hoi han
hoi dan » hoa dan, hoc dan, hoi dap
nhan va » nhan tai, nhan dan, nhan tao
hoc xa » hoc ma