Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
nganh khoa » nganh hoa, nganh khong, doanh khoa
cach thoi » cac thoi, cach thuc, cach noi
hoc nganh » hoc nhanh
thoi tap » toi tap, hoc tap, thoi dai
tung hoc » trung hoc, tuong hoc, dung hoc
khoa hoc » hoa hoc
nhan dan » phan dau, gian dan, nhan tai
phan van » pham van, thanh van, luan van
su cach » su sach, tu cach, su cac
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 huu tung hoc nganh khoa hoc xa hoi va ((nhan dan) or (phan van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cach thoi tap, nghien huu tung hoc nganh khoa hoc xa hoi va ((nhan dan) OR (phan van)).
• Adding a wildcard symbol may retrieve word variants: su cach thoi tap, nghien huu tung hoc nganh khoa hoc xa hoi va ((nhan dan) or (phan van))*.