Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
trung cap » truong cao, trung tam
cap dong » cao dong, cau dong, ca dong
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
ran cau » van cau, ban cau, can cau

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 sang - thanh trung cap dong ((cong tan) OR (cong san)) ran cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - thanh trung cap dong ((cong tan) OR (cong san)) ran cau".
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh trung cap dong ((cong tan) OR (cong san)) ran cau*.