Perhaps you should try some spelling variations:
hien nhanh » thien thanh, tien thanh, dien thanh
hien hanh » dieu hanh
trung cam » trung tam, trung cap, trung ca
trung nam » trung tam, trong nam, trung cap
dung cong » dung trong
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
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 nhanh) or (hien hanh)) - hanh ((trung cam) or (trung nam)) dung cong van toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien nhanh) OR (hien hanh)) - hanh ((trung cam) OR (trung nam)) dung cong van toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nhanh) or (hien hanh)) - hanh ((trung cam) or (trung nam)) dung cong van toan tap*.