Perhaps you should try some spelling variations:
thanh tung » thanh cong
tieu sang » chieu sang, tieu dung, tiem nang
tung tam » trung tam, vung tam, dung tam
tam hang » nam thang, pham hang, tam huong
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
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 tieu sang - thanh tung tam hang ((cong dan) or (cong san)) chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - thanh tung tam hang ((cong dan) OR (cong san)) chan cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu sang - thanh tung tam hang ((cong dan) or (cong san)) chan cau*.