Perhaps you should try some spelling variations:
cong khanh » cong thanh, cong khan, cong nhan
khanh pham » thanh pham, thanh phan, hang pham
doi chieu » doc hieu, doi chi, mot chieu
hanh dung » thanh dung, anh dung, hanh dong
dung lan » dung luan, dung land, dung lam
van cong » van dong, van phong, phan cong
pham lap » phan lap, pham lan, pham gap
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 - hanh dung lan van cong khanh pham lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (toc thieu)) sang - hanh dung lan van cong khanh pham lap".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (toc thieu)) sang - hanh dung lan van cong khanh pham lap*.