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hoi thuong » hoai thuong, hoc thuong, boi thuong
pho thong » he thong
sach tren » sach tien, sach tranh
tren thuc » trien thuc, tron thuc, trinh thuc
sach tri » sach tai, sach truc, sach bai
tri phuc » tri thuc, tri phu, thi phuc
phuc cac » phuc cam, phuc ca, phuc cham
cac khoa » cac khoan, cac khoi, cao khoa
khoa pho » khoa phu, khoa khoa, khoa phau
thuc dac » thuoc dac, thuc dan, thuc day
dac khoa » da khoa, dai khoa, dau khoa
khoa hoi » khoan hoi, khoa hoc, khoa doi
tu sach » thu sach, su sach, te sach