Perhaps you should try some spelling variations:
truong xuat » truong luat, truong cua, truong quan
truong xuan » truong quan, truong luan, truong quang
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
cong thanh » dong thanh, cong trinh, cong tan
cong dan » cong san, cong tan, huong dan

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 - thanh ((truong xuat) OR (truong xuan)) thong ((cong dan) or (cong thanh)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sang - thanh ((truong xuat) OR (truong xuan)) thong ((cong dan) OR (cong thanh)) van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sang - thanh ((truong xuat) OR (truong xuan)) thong ((cong dan) or (cong thanh)) van ban".
• Adding a wildcard symbol may retrieve word variants: theo chieu sang - thanh ((truong xuat) OR (truong xuan)) thong ((cong dan) or (cong thanh)) van ban*.