Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
doanh phan » doanh nhan, doan phan, doanh thanh
hoc nganh » hoc nhanh
nganh hoa » thanh hoa, khanh hoa, danh hoa
hoi doanh » hoa doanh, voi doanh, doi doanh
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
tu sach » thu sach, su sach, te sach
hoc xa » hoc ma

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuat sach)) hoc tap, nghien cuu cong hoc nganh hoa hoc xa hoi doanh phan tu~.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuat sach)) hoc tap, nghien cuu cong hoc nganh hoa hoc xa hoi doanh phan tu*.