Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
hang luan » tang luan, dung luan
dang cong » dung cong
tran tan » tran tuan, tran van, tran thanh
luan va » luan van, luat va

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 xanh) or (chieu sach)) - hang luan va ((nhung cong) or (dang cong)) tan tran tan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sach)) - hang luan va ((nhung cong) OR (dang cong)) tan tran tan.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sach)) - hang luan va ((nhung cong) or (dang cong)) tan tran tan*.