Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hinh trong » chinh trong, dinh trong, sinh trong
luong cong » dung cong, trong cong, cong cong
trong van » trong cac
van luong » van duong, van cuong, nang luong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, 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: theo ((chieu xanh) or (chinh sach)) - hinh trong van luong cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chinh sach)) - hinh trong van luong cong dan than cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chinh sach)) - hinh trong van luong cong dan than cao*.