Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hanh doanh » hang doanh, chinh doanh, doanh doanh
hoc thieu » toc thieu, hoc hien
doanh qua » doanh quan, doanh cua, danh qua
song cong » cong cong, tong cong, song hong
vang toan » van toan, dang toan, quang toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - hanh doanh qua ((song cong) or (trong cong)) vang toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh doanh qua ((song cong) OR (trong cong)) vang toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh doanh qua ((song cong) or (trong cong)) vang toan ban*.