Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
cua nhung » va nhung
cong nhat » cong nhan, cong suat, dang nhat
hanh han » hanh nhan, hanh phan, hanh san
toan cao » toan ban, toan tap
han cua » hang cua, nhan cua, than cua
cong ha » cong hoa, dong ha, cong tac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - hanh han cua nhung ((cong nhat) OR (cong ha)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu sach)) - hanh han cua nhung ((cong nhat) OR (cong ha)) toan cao~".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sach)) - hanh han cua nhung ((cong nhat) OR (cong ha)) toan cao*.