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