Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
cong thanh » dong thanh, cong trinh, cong tan
trung cap » truong cao, trung tam
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: theo chieu sang - thanh trung cap ban ((cong san) or (cong thanh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sang - thanh trung cap ban ((cong san) OR (cong thanh)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chieu sang - thanh trung cap ban ((cong san) or (cong thanh)) toan cau*.