Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
cong thanh » dong thanh, cong trinh, cong tan
cong danh » cuong danh, cong dan, cong khanh
chinh va » chinh ta, chinh tai, hanh va
tuan cau » toan cau, quan cau, tuan cu

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 xanh) or (chieu sang)) - hanh chinh va nhung ((cong danh) OR (cong thanh)) tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (chieu sang)) - hanh chinh va nhung ((cong danh) OR (cong thanh)) tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) or (chieu sang)) - hanh chinh va nhung ((cong danh) OR (cong thanh)) tuan cau".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (chieu sang)) - hanh chinh va nhung ((cong danh) OR (cong thanh)) tuan cau*.