Perhaps you should try some spelling variations:
cach thoi » cac thoi, cach thuc, cach noi
hoc nganh » hoc nhanh
nganh hoa » thanh hoa, khanh hoa, danh hoa
thoi tap » toi tap, hoc tap, thoi dai
cuu long » cuu cong, cuu tong, cuu nang
long hoc » dong hoc, long soc, long thuoc
nhan dan » phan dau, gian dan
nhan tai » hang tai, van tai, toan tai
su cach » su sach, tu cach, su cac
hoi van » hoi va, hoi dan, hai van
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cach thoi tap, nghien cuu long hoc nganh hoa hoc xa hoi van ((nhan dan) or (nhan tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cach thoi tap, nghien cuu long hoc nganh hoa hoc xa hoi van ((nhan dan) OR (nhan tai)).
• Adding a wildcard symbol may retrieve word variants: su cach thoi tap, nghien cuu long hoc nganh hoa hoc xa hoi van ((nhan dan) or (nhan tai))*.