Perhaps you should try some spelling variations:
tieu danh » dieu danh, tiep danh, thien danh
hanh tang » hanh trang, anh tang, hanh mang
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, dung cong
tang cua » mang cua, hang cua, tang luan
van toan » van tuan, van tan, van thanh
toan ban » van ban

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

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