Perhaps you should try some spelling variations:
khoa nganh » khoi nganh, hoc nganh
cach thoi » cac thoi, cach thuc, cach noi
nganh hoa » thanh hoa, khanh hoa, danh hoa
dich hoc » sinh hoc, hinh hoc, tinh hoc
cuu toan » cuu hoan, cua toan, huu toan
nhan dan » phan dau, gian dan, nhan tai
va nhan » van nhan, ca nhan, va phan
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: te ((dich hoc) OR (cach thoi)) tap, nghien cuu toan khoa nganh hoa hoc xa hoi va nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((dich hoc) OR (cach thoi)) tap, nghien cuu toan khoa nganh hoa hoc xa hoi va nhan dan".
• Adding a wildcard symbol may retrieve word variants: te ((dich hoc) OR (cach thoi)) tap, nghien cuu toan khoa nganh hoa hoc xa hoi va nhan dan*.