Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
khoa hoc » hoa hoc
phap van » pham van, phan van, phap han
hoi tap » hoi dap, hoc tap, hoi tai
hoc bai » hoc dai, hoc giai
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
va phap » va phat, ban phap
hoa va » hoa van, hoa xa, hoa vo

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: thuat sach ((hoi tap) OR (hoc bai)), nghien cuu mon hoc nganh khoa hoc ma hoa va phap van~.
• Adding a wildcard symbol may retrieve word variants: thuat sach ((hoi tap) or (hoc bai)), nghien cuu mon hoc nganh khoa hoc ma hoa va phap van*.