Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh tranh » canh tranh, hanh trinh, hanh trang
thong cong » tong cong, phong chong, cong cong
tranh cua » doanh cua, manh cua
tan than » tan thanh, tan tran, ban than
than cau » toan cau, phan cau, than cap

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: theo chieu sach - hanh tranh cua ((((thong cong) OR (thong thong))) OR (trong cong)) tan than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - hanh tranh cua ((((thong cong) OR (thong thong))) or (trong cong)) tan than cau~".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh tranh cua ((((thong cong) OR (thong thong))) or (trong cong)) tan than cau*.