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khoan phan » khoan phai, khoan thanh, hoa phan
hoc thong » hoc thuong, hoc trong, hoc hong
phan song » phan cong, phan hong, phan xuong
sach thu » sach thue, sach thieu, sach tham
thu thuc » thuc thuc, thu thuoc, thue thuc
thuc cac » thuc cach, tuc cac, phuc cac
cac khoa » cac khoi, dac khoa, cao khoa
khoa hoc » hoa hoc
thu sach » thuat sach, thuoc sach, thu hoach
sach lai » sach bai, sach tai, sach luan
tu sach » su sach, te sach, tu cach
lai cua » dai cua, hai cua, lai chau