Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
tuan thong » toan thong, tran thong, tuan phong
thong cong » trong cong, tong cong, thong thong
hanh tran » hanh trang, thanh tran, hanh tram
tran tuan » tran xuan, tran quang, tran thanh
cong tac » cong ty
tac ran » tac can, tac van, tac quan
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: doi ((chieu sang) OR (chieu xanh)) - hanh tran tuan thong cong tac ran cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sang) OR (chieu xanh)) - hanh tran tuan thong cong tac ran cau".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sang) OR (chieu xanh)) - hanh tran tuan thong cong tac ran cau*.