Perhaps you should try some spelling variations:
thien chinh » tien thinh, thien chien, thi chinh
dong trong » duong trong, dung trong, cong trong
hien hanh » dieu hanh
chinh he » chinh che, hinh he, chinh ke
van toan » van tuan, van thanh, manh toan
he dong » ha dong, de dong, he cong
van tan » van tuan, van ban, van tai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien chinh) or (hien hanh)) - hanh chinh he dong trong ((van toan) or (van tan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien chinh) OR (hien hanh)) - hanh chinh he dong trong ((van toan) OR (van tan)) cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien chinh) or (hien hanh)) - hanh chinh he dong trong ((van toan) or (van tan)) cao*.