Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
chiet tach » chieu sach
thong cong » trong cong, tong cong, thong thong
hieu lang » chieu sang, hieu quang, nhieu tang
cua thong » cua thuong, cua khong, cua tong
cong cua » cong cu, dong cua, huong cua
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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 (chiet tach))) or (hieu lang)) - thanh cong cua thong cong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((((chieu xanh) OR (chiet tach))) OR (hieu lang)) - thanh cong cua thong cong dan chan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((((chieu xanh) or (chiet tach))) or (hieu lang)) - thanh cong cua thong cong dan chan cau*.