Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
hang nong » thang long, han tong
ho chieu » hoc thieu, doi chieu, mot chieu
ban tap » bai tap, han tap, ban tai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sang - hanh tranh cua ((nhung cong) OR (hang nong)) van ban tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) sang - hanh tranh cua ((nhung cong) or (hang nong)) van ban tap~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (theo chieu)) sang - hanh tranh cua ((nhung cong) or (hang nong)) van ban tap*.