Perhaps you should try some spelling variations:
nganh thong » nganh khong, nganh cong, nhanh chong
nghien cac » nghiep cach, nghien cuu, nghiep cay
cac nganh » hoc nganh
thong hoc » thuong hoc, tuong hoc, thong hoa
sach hoc » cach hoc, sach hoi, mach hoc
cac cong » cua cong
cong cac » cuong cac, cong tac, cong cau
tu sach » thu sach, su sach, te sach
hoa cau » hoa cac, hoa dau, hoa mau
hoi ca » hoi cua, hoi cac, hoi cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach hoc tap, nghien cac cong cac nganh thong hoc ma ((hoi ca) or (hoa cau)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoc tap, nghien cac cong cac nganh thong hoc ma ((hoi ca) OR (hoa cau)) phan tu.
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cac cong cac nganh thong hoc ma ((hoi ca) or (hoa cau)) phan tu*.