Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
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 toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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 (chieu sang))) or (chinh sach)) - hinh trong van luong cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((((chieu xanh) OR (chieu sang))) OR (chinh sach)) - hinh trong van luong cong dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((((chieu xanh) OR (chieu sang))) or (chinh sach)) - hinh trong van luong cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((((chieu xanh) OR (chieu sang))) or (chinh sach)) - hinh trong van luong cong dan toan cao*.