Perhaps you should try some spelling variations:
khan thanh » khoan thanh, khanh thanh, phan thanh
hanh dung » thanh dung, anh dung, hanh dong
dung lang » dung dang, dung nang, dung land
cong khan » cong khanh, cong nhan, cong phan
thanh lap » thanh san, phan lap, thanh hai
doc hieu » hoc thieu, hoc hien
lang van » dang van, tang van, hoang van
van cong » van dong, van phong, phan cong

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 (toc thieu)) sang - hanh dung lang van cong khan thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (toc thieu)) sang - hanh dung lang van cong khan thanh lap.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (toc thieu)) sang - hanh dung lang van cong khan thanh lap*.