Perhaps you should try some spelling variations:
luan phung » luan phuong, luan chung, luan phong
phung cong » nhung cong, phong cong, nhung chong
hoc thieu » toc thieu, hoc hien
dang luan » dung luan, tang luan, hang luan
doc hieu » toc thieu, hoc hien
anh dang » anh dong, anh dung, anh bang
cong san » cong tac
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (hoc thieu)) xanh - anh dang luan phung cong san ((than cau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) xanh - anh dang luan phung cong san ((than cau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (hoc thieu)) xanh - anh dang luan phung cong san ((than cau) or (phan tu))*.