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cach thoi » cac thoi, cach thuc, cach noi
hoc nganh » hoc nhanh
thanh van » thanh san, thanh toan, thanh phan
thoi tap » toi tap, hoc tap, thoi dai
cuu toan » cuu hoan, cua toan, huu toan
toan hoc » toan khoa, van hoc, hoa hoc
cong hoc » dong hoc, cong coc, cong ho
cong hoa » dong hoa, dong hoc, hang hoa
va thanh » gia thanh, ban thanh, va tinh
te cach » ve cach, te sach, tu cach
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