Perhaps you should try some spelling variations:
khanh luan » khanh thuan, doanh luan, hang luan
doi chieu » doc hieu, doi chi, mot chieu
dang cong » dung cong
cong khan » cong khanh, cong nhan, cong phan
khan phan » than phan, khan than, phan phan
van dang » van dong, van dung, van nang
phan lap » phan dau

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 - khanh luan van dang cong khan phan lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (toc thieu)) sang - khanh luan van dang cong khan phan lap".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (toc thieu)) sang - khanh luan van dang cong khan phan lap*.