Perhaps you should try some spelling variations:
cach thoi » cac thoi, cach thuc
hoc nganh » hoc nhanh
nganh hoa » thanh hoa, khanh hoa, danh hoa
cach noi » hanh noi, anh noi, cau noi
cau nhan » chau nhan, ca nhan, cu nhan
nhan dan » phan dau, gian dan, nhan tai
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoi cau » hoi chu, hoc cau, hoa cau
hoc xa » hoc ma

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: tu ((cach thoi) OR (cach noi)) tap, nghien cuu mon hoc nganh hoa hoc xa hoi cau nhan dan~.
• Adding a wildcard symbol may retrieve word variants: tu ((cach thoi) or (cach noi)) tap, nghien cuu mon hoc nganh hoa hoc xa hoi cau nhan dan*.