Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
khoa hoc » hoa hoc
phan dau » phan tu, hang dau
gian dan » gian lang
tu bach » vu bach, tu cach, tu bac
mai tap » bai tap, mai tat, mai tan
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
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: tu bach mai tap, nghien cuu mot hoc nganh khoa hoc xa hoi va ((phan dau) or (gian dan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu bach mai tap, nghien cuu mot hoc nganh khoa hoc xa hoi va ((phan dau) OR (gian dan)).
• Adding a wildcard symbol may retrieve word variants: tu bach mai tap, nghien cuu mot hoc nganh khoa hoc xa hoi va ((phan dau) or (gian dan))*.