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thuc doanh » thuc hanh, thuc dan, chuc danh
doanh khoa » toan khoa
than thong » than thuong, toan thong, tran thong
sach thai » sach tham, sac thai, sach tai
thai thuc » thai thuy, thai tuc, tham thuc
hoc thong » hoc thuong, hoc trong, hoc hong
khoa than » khoa luan, hoa thai, hoa tan
khoa hoc » hoa hoc
thai cua » than cua, tai cuc, tri cua
dac khoa » da khoa, dai khoa, dau khoa
so sach » so sanh, bo sach, co sach
cua dac » chua dac, cua cac, cua dan