Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
cong thanh » dong thanh, cong trinh, cong tan
trung cap » truong cao, trung tam
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
toan cau » toan cao, toan ban, toan tap
cap ban » cap bang, can ban, cac ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sang - thanh trung cap ban ((cong thanh) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh trung cap ban ((cong thanh) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh trung cap ban ((cong thanh) or (cong san)) toan cau*.