Perhaps you should try some spelling variations:
hien thanh » thien thanh, tien thanh, dien thanh
nhung cong » dung cong, thong cong, hang cong
hien hanh » dieu hanh
hanh hinh » hanh chinh, hanh tinh, hanh dinh
cua nhung » va nhung
hinh cua » chinh cua, sinh cua, tinh cua
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban
toan tap » toan 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 thanh) or (hien hanh)) - hanh hinh cua nhung cong tan ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien thanh) OR (hien hanh)) - hanh hinh cua nhung cong tan ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc ((hien thanh) or (hien hanh)) - hanh hinh cua nhung cong tan ((toan cao) or (toan tap))*.