Perhaps you should try some spelling variations:
doanh thuong » doan phuong, anh thuong, dinh thuong
nghien thuc » nghiem thuc, nghiep thuc, nghiem thuoc
thuong hoc » truong hoc, tuong hoc, thuong ho
hoa doanh » toan doanh, hoa dan
sach hoi » sach doi, sach moi, cach thoi
hanh hoa » thanh hoa, khanh hoa, hang hoa
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban
so sach » so sanh, bo sach, co sach
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: so sach hoi trac, nghien thuc hanh hoa doanh thuong hoc xa hoi trac ((toan tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach hoi trac, nghien thuc hanh hoa doanh thuong hoc xa hoi trac ((toan tai) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: so sach hoi trac, nghien thuc hanh hoa doanh thuong hoc xa hoi trac ((toan tai) or (toan ban))*.