Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
khoa quoc » khoa hoc, hoa duoc, hoc quoc
hoc nganh » hoc nhanh
nhan tao » nhan tai, nhan dan
van nhan » van phan, van thanh, danh nhan
thu sach » tu sach, thuat sach, thuoc sach
quoc lam » duoc lam, quoc lan, hoc lam
hai van » thai van, ha van, hai tan
lam hai » lam tai, lam ha, nam hai
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

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (thu sach)) doi tap, nghien cuu mon hoc nganh khoa quoc lam hai van nhan tao~.
• 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 khoa quoc lam hai van nhan tao*.