Perhaps you should try some spelling variations:
thanh tung » thanh cong
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
so lieu » so dieu
co lieu » cot lieu, co hieu, cu lieu
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: ((so lieu) or (co lieu)) tinh - ((thanh trung) or (thanh tung)) va dung cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so lieu) OR (co lieu)) tinh - ((thanh trung) OR (thanh tung)) va dung cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: ((so lieu) or (co lieu)) tinh - ((thanh trung) or (thanh tung)) va dung cong dan toan cao*.