Perhaps you should try some spelling variations:
khan thanh » khoan thanh, khanh thanh, phan thanh
doi chieu » doc hieu, doi chi, mot chieu
cong khan » cong khanh, cong nhan, cong phan
thanh lap » thanh san, phan lap, thanh hai
anh dung » anh dong, anh huong, sach dung
dung lan » dung luan, dung land, dung lam
van cong » van dong, van phong, phan cong
lan van » luan van, lang van, tan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (toc thieu)) sang - anh dung lan van cong khan thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (toc thieu)) sang - anh dung lan van cong khan thanh lap.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (toc thieu)) sang - anh dung lan van cong khan thanh lap*.