Perhaps you should try some spelling variations:
nganh thong » nganh khong, nganh cong, nhanh chong
hoc nganh » hoc nhanh
thong hoc » thuong hoc, tuong hoc, thong hoa
sach doi » sach hoi, sach moi, sach dao
nhan tai » hang tai, van tai
toan tai » toan tap, doanh tai, toan ban
bo sach » co sach, hoc sach
doi tap » doi tac, doi dap, doi tai
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
hoc mai » hoc ma, hoc dai, hoc may
mai hoi » mai khoi, dai hoi, lai hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach doi tap, nghien cuu mot hoc nganh thong hoc mai hoi va ((nhan tai) or (toan tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach doi tap, nghien cuu mot hoc nganh thong hoc mai hoi va ((nhan tai) OR (toan tai))*.