Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tang » hanh trang, anh tang, hanh mang
tang cua » mang cua, hang cua, tang luan
cua hang » cua dang, cua nhung, cua cong
cong tan » cong tac, cong san, cong ty

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu manh) or (chieu sang)) - hanh tang cua hang ((cong tan) OR (cong thanh)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu manh) OR (chieu sang)) - hanh tang cua hang ((cong tan) OR (cong thanh)) van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu manh) or (chieu sang)) - hanh tang cua hang ((cong tan) OR (cong thanh)) van ban".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu manh) or (chieu sang)) - hanh tang cua hang ((cong tan) OR (cong thanh)) van ban*.