Perhaps you should try some spelling variations:
tien thanh » tien thinh, tran thanh, den thanh
hien hanh » dieu hanh
hanh tang » hanh trang, anh tang, hanh mang
cua thong » cua thuong, cua khong, suat thong
cua tong » cua cong, cua dong, cua nong
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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 ((hien hanh) or (tien thanh)) - hanh tang ((cua thong) or (cua tong)) cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien hanh) OR (tien thanh)) - hanh tang ((cua thong) OR (cua tong)) cong tac toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien hanh) or (tien thanh)) - hanh tang ((cua thong) or (cua tong)) cong tac toan ban*.