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
ho chieu » theo chieu, hoc thieu, doi chieu
trung ha » trung hoc, trung tam, trung cap
ha trong » hoa trong, hai trong, hat trong
than cau » toan cau, phan cau, than cap

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 ha trong ((cong ty) or (cong thanh)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh trung ha trong ((cong ty) OR (cong thanh)) than cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh trung ha trong ((cong ty) or (cong thanh)) than cau*.