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