Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tang » hanh trang, anh tang, hanh mang
cong luan » tong luan, dong luan, cong luong
cong tuan » cong tan, cong thanh, cong quang
tang qua » tang quan, tang cua, tang quy
qua dung » quang dung, su dung, qua song

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((thieu xanh) or (chieu xanh)) - hanh tang qua dung ((cong luan) OR (cong tuan)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((thieu xanh) OR (chieu xanh)) - hanh tang qua dung ((cong luan) OR (cong tuan)) van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((thieu xanh) or (chieu xanh)) - hanh tang qua dung ((cong luan) OR (cong tuan)) van ban".
• Adding a wildcard symbol may retrieve word variants: toc ((thieu xanh) or (chieu xanh)) - hanh tang qua dung ((cong luan) OR (cong tuan)) van ban*.