Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
nganh hoa » thanh hoa, khanh hoa, danh hoa
thu sach » tu sach, thuat sach, thuoc sach
lam thoi » lam thuoc, ly thoi, cac thoi
thoi van » thoai van, thi van, thai van
van nhan » van phan, van thanh, danh nhan
nhan tao » nhan tai, nhan dan
te sach » toc sach
doi tap » doi tac, doi dap, doi tai
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoc lam » duoc lam

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thu sach)) doi tap, nghien cuu mon hoc nganh hoa hoc lam thoi van nhan tao~.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thu sach)) doi tap, nghien cuu mon hoc nganh hoa hoc lam thoi van nhan tao*.