Perhaps you should try some spelling variations:
chieu sang » chieu sach, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
hanh trinh » canh tranh, hanh chinh
hieu lang » hieu quang, nhieu tang, hieu van
trinh cua » tinh cua, trinh luat, trinh quan
dong cong » duong cong, dung cong, dang cong
cua dong » chua dong, cua cong, cua dang
cong tac » cong ty
tac nhan » tao nhan, cac nhan, dac nhan
nhan cau » nhanh cau, phan cau, nhan sau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((((chieu sang) OR (chieu xanh))) or (hieu lang)) - hanh trinh cua dong cong tac nhan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((((chieu sang) OR (chieu xanh))) OR (hieu lang)) - hanh trinh cua dong cong tac nhan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((((chieu sang) OR (chieu xanh))) or (hieu lang)) - hanh trinh cua dong cong tac nhan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((((chieu sang) OR (chieu xanh))) or (hieu lang)) - hanh trinh cua dong cong tac nhan cau*.