Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
sach hoc » cach hoc, sach hoi, mach hoc
cuu cong » cua cong, thu cong, cac cong
so nganh » so ngan, hoc nganh, moi nganh
khoa hoc » hoa hoc
tu sach » thu sach, su sach, te sach
cong so » cong san, cong hoa
hoi vay » hoi hay
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 sach hoc tap, nghien cuu cong so nganh khoa hoc xa ((hoi vay) OR (hoi va)) luan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien cuu cong so nganh khoa hoc xa ((hoi vay) OR (hoi va)) luan van".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cuu cong so nganh khoa hoc xa ((hoi vay) OR (hoi va)) luan van*.