Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
va gianh » va gian, van giang, va giai
toc sach » hoc sach, doc sach, thuoc sach
khoa hoc » hoa hoc
mon hoc » toan hoc, dong hoc
cuu mon » cuu mo, cuu mot, cuu cong
sach do » sach dao, sach doi, sach de
hoc dai » hoc dan
dai hoi » dai hoc, dai hai, dai moi
ca gian » ca giang, ca giao, va gian
do dac » do duc, do dai, so dac

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: toc sach do dac, nghien cuu mon hoc nganh khoa hoc dai hoi ((ca gian) OR (va gianh)) dan~.
• Adding a wildcard symbol may retrieve word variants: toc sach do dac, nghien cuu mon hoc nganh khoa hoc dai hoi ((ca gian) or (va gianh)) dan*.