Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
cap thuong » chap thuong, ca thuong, cao thuong
trung cap » truong cao, trung tam
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
phan cau » phan dau, phan cac, phan tu

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 thuong ((((cong tac) or (cong san))) or (huong dan)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh trung cap thuong ((((cong tac) OR (cong san))) OR (huong dan)) phan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh trung cap thuong ((((cong tac) or (cong san))) or (huong dan)) phan cau*.