Perhaps you should try some spelling variations:
nghiep cua » nghiep vua, nghiep luan, nghien cuu
hoc doanh » hoa doanh, hoc danh, hoc dan
doanh hoa » doanh khoa, doanh hoan, danh hoa
cong hoc » dong hoc, cong hoa, cong coc
ban hang » ngan hang
hang van » hoang van, hang va, dang van
so sach » so sanh, bo sach, co sach
doi tap » doi tac, doi tai, doi tan
doi dap » hoi dap, doi dau, do dap
hoi ban » hoi dan, hoi bai, doi ban
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 ((doi tap) or (doi dap)), nghiep cua cong hoc doanh hoa hoc xa hoi ban hang van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((doi tap) OR (doi dap)), nghiep cua cong hoc doanh hoa hoc xa hoi ban hang van.
• Adding a wildcard symbol may retrieve word variants: so sach ((doi tap) or (doi dap)), nghiep cua cong hoc doanh hoa hoc xa hoi ban hang van*.