Perhaps you should try some spelling variations:
nghien chuc » nghien cuu, nghiem thuc, nghiep thuc
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
luan phan » luan van, luan hoan
sach hoi » sach doi, sach moi, cach thoi
nang hoc » nang doc, nang luc, dong hoc
hoi luan » hoa luan, hoc luan, khoa luan
phan van » pham van, thanh van, luan van
so sach » so sanh, bo sach, co sach
hoi tap » hoi dap, hoc tap, hoi tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach hoi tap, nghien chuc nang hoc nganh khoa ((hoc xa) or (hoc ma)) hoi luan phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach hoi tap, nghien chuc nang hoc nganh khoa ((hoc xa) OR (hoc ma)) hoi luan phan van.
• Adding a wildcard symbol may retrieve word variants: so sach hoi tap, nghien chuc nang hoc nganh khoa ((hoc xa) or (hoc ma)) hoi luan phan van*.