Perhaps you should try some spelling variations:
khanh thanh » nhanh thanh, thanh thanh, phan thanh
cong khanh » cong thanh, cong khan, cong nhan
doi chieu » doc hieu, doi chi, mot chieu
luan dang » luan nang, luan danh, luan dong
dang cong » dung cong
thanh lap » thanh san, phan lap, thanh hai
anh dung » anh dong, anh huong, sach dung

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 luan dang cong khanh thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (toc thieu)) sang - anh dung luan dang cong khanh thanh lap.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (toc thieu)) sang - anh dung luan dang cong khanh thanh lap*.