Perhaps you should try some spelling variations:
canh doanh » hanh doanh, chinh doanh, doanh doanh
phuong dan » phuong danh, phuong doan, huong dan
hoc chieu » ho chieu, hoc hien, hoc dieu
hoc thieu » toc thieu, hoc hien
dan thanh » dang thanh, danh thanh, ban thanh
thanh ban » thanh san, thanh van, thanh bac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chieu) or (hoc thieu)) sach - canh doanh ((cua nhung) OR (va nhung)) phuong dan thanh ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc thieu)) sach - canh doanh ((cua nhung) OR (va nhung)) phuong dan thanh ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) or (hoc thieu)) sach - canh doanh ((cua nhung) OR (va nhung)) phuong dan thanh ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (hoc thieu)) sach - canh doanh ((cua nhung) OR (va nhung)) phuong dan thanh ban*.