Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
dong doanh » dung doanh, trong doanh, doanh doanh
doanh toan » doanh hoan, doanh doanh, doanh thanh
hanh hang » thanh hang, hang hang, hanh han
cua thang » cua thanh, xua thang, cua thuong
cua hang » cua dang, cua nhung, cua cong
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 ((hien nhanh) or (thi thanh)) - hanh hang ((cua thang) OR (cua hang)) dong doanh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien nhanh) OR (thi thanh)) - hanh hang ((cua thang) OR (cua hang)) dong doanh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien nhanh) or (thi thanh)) - hanh hang ((cua thang) OR (cua hang)) dong doanh toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nhanh) or (thi thanh)) - hanh hang ((cua thang) OR (cua hang)) dong doanh toan ban*.