Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
hoc thieu » toc thieu, hoc hien
hanh luan » khanh luan, hang luan, hanh luat
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 (hoc thieu)) sang - hanh luan van dang cong khan phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (hoc thieu)) sang - hanh luan van dang cong khan phan lap.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (hoc thieu)) sang - hanh luan van dang cong khan phan lap*.