Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
cong cong » cong dong, trong cong, dung cong
doc hieu » toc thieu, hoc hien
thanh ta » thanh tra, thanh tai, thanh tay
van cong » van dong, van phong, phan cong
cong dan » cong san, cong tan, huong dan
dan doan » dan toan, tan doan, van doan
ta van » tan van, tap van, va van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (hoc thieu)) manh - thanh ta van cong cong dan doan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) manh - thanh ta van cong cong dan doan va*.