Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
ban thanh » ban hanh, ban hang
thanh cau » thanh chau, thanh mau, nhanh cau
ho chieu » theo chieu, hoc thieu, doi chieu
cua dung » cua dong, qua dung, cua rung
cua dang » cua cong, cua ban
cong ban » cong bang, cong san, cong tan

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