Perhaps you should try some spelling variations:
khanh luan » khanh thuan, doanh luan, hang luan
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, mot chieu
hung cong » hung cuong, phung cong, dung cong
ho chieu » theo chieu, hoc thieu, mot chieu
van tuan » van quan, van ban, anh tuan
tuan cau » toan cau, quan cau, tuan cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doi chieu)) xanh - khanh luan van ((hung cong) or (nhung cong)) van tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) xanh - khanh luan van ((hung cong) OR (nhung cong)) van tuan cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) xanh - khanh luan van ((hung cong) or (nhung cong)) van tuan cau*.