Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh tang » hanh trang, anh tang, hanh mang
tang cua » mang cua, hang cua, tang luan
cua tong » cua cong, cua dong, cua nong
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (chieu tinh)) - hanh tang cua tong ((cong dan) OR (cong tan)) van ban~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (chieu tinh)) - hanh tang cua tong ((cong dan) OR (cong tan)) van ban*.