Perhaps you should try some spelling variations:
nghien cac » nghiep cach, nghien cuu, nghiep cay
doanh khoa » toan khoa
hoc doanh » hoa doanh, hoc danh, hoc dan
ngan danh » ngan hang, ngan sach, nhan dan
sach moi » sach doi, sach hoi, bach mai
cac cong » cua cong
cong hoc » dong hoc, cong hoa, cong coc
khoa hoc » hoa hoc
ngan dau » nganh dau, ngay dau, nganh dao
te sach » toc sach
moi tap » moi tai, toi tap
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: te sach moi tap, nghien cac cong hoc doanh khoa hoc xa hoi chuc ((ngan dau) OR (ngan danh))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach moi tap, nghien cac cong hoc doanh khoa hoc xa hoi chuc ((ngan dau) OR (ngan danh))".
• Adding a wildcard symbol may retrieve word variants: te sach moi tap, nghien cac cong hoc doanh khoa hoc xa hoi chuc ((ngan dau) OR (ngan danh))*.