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khoa thong » hoa thong, thoai thong, pho thong
thuc thanh » thuoc thanh, thuc hanh, phuc thanh
thanh hoa » thanh pho
truc hang » truc trang, truoc bang, truoc cang
hang khoa » dung khoa
doi thong » doi thuong, doi tuong, doi trong
sach tai » sach bai, sach tham, sach dao
tai thuc » thai thuc, tri thuc, dai thuc
hoa khoa » khoa khoa, chua khoa, chia khoa
tai truc » dai truc, thi truc, tai trung
khoa doi » hoa doi, khoa hoi, khoa noi
tu sach » thu sach, su sach, te sach