Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
trung cua » truong cua, trung tuan, trung cap
ho chieu » theo chieu, hoc thieu, doi chieu
ban cong » bang cong, van cong, phan cong
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan ban, toan tap
tra cau » tra sau, ta cau, tra cuu
ran cau » van cau, ban cau, can cau

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