Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » thong cong, hang cong, nhung don
doi chieu » doc hieu, doi chi, ho chieu
dong luan » dung luan, tong luan, dong xuan
dung cong » dung trong
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap
ha dong » hoat dong, van dong

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 xanh - ha dong luan ((nhung cong) or (dung cong)) dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ha dong luan ((nhung cong) OR (dung cong)) dan than cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ha dong luan ((nhung cong) or (dung cong)) dan than cao*.