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thuoc doanh » thuoc dang, thuoc dong, thuoc thanh
thuoc sach » hoc sach, nuoc sach, thuat sach
long thuoc » luong thuoc, dong thuoc, khong thuoc
doanh khoa » toan khoa
van giang » manh giang, tran giang, dan gian
giang dan » gian dan, giang day, giang van
cuu long » cuu cong, cuu tong, cuu nang
khoa hoc » hoa hoc
tu sach » thu sach, su sach, te sach
hoi van » hoi va, hoi dan, hai van
hoc xa » hoc ma