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khoa thong » hoa thong, thoai thong, pho thong
thuc thuat » thu thuat, thuc thuc, thuc thai
thuat sach » thuat lanh, thuat san
sinh khoa » sinh hoc, sinh hoat, anh khoa
khoa khoa » hoa khoa, khuan khoa, khoa hoc
sach khoa » bach khoa, sach nha, anh khoa
thu sach » tu sach, thuoc sach, thu hoach
sach tin » sach tien, sach kinh, sach tren
thu sinh » thu minh, thu kinh, thuoc sinh
thuc anh » thuc hanh, thuy anh, thu anh
anh thuc » am thuc, dan thuc, anh tu
tin thu » tien thu, tin tu, tinh thua