Perhaps you should try some spelling variations:
thanh tung » thanh cong
hien hanh » dieu hanh
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cao » chan cho, chat cao, chay cao
va dung » van dung, va duong, vat dung

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 - ((hanh chinh) or (thanh tung)) va dung cong dan chan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - ((hanh chinh) OR (thanh tung)) va dung cong dan chan cao.
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - ((hanh chinh) or (thanh tung)) va dung cong dan chan cao*.