Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, manh trung, danh trung
hanh trang » thanh trung, canh tranh, hanh trinh
thong cong » trong cong, tong cong, thong thong
ho chieu » theo chieu, hoc thieu, doi chieu
va thong » va thuong, va phuong, he thong
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - ((hanh trung) or (hanh trang)) va thong cong dan ((than cau) OR (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((hanh trung) OR (hanh trang)) va thong cong dan ((than cau) OR (than cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((hanh trung) or (hanh trang)) va thong cong dan ((than cau) OR (than cap))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((hanh trung) or (hanh trang)) va thong cong dan ((than cau) OR (than cap))*.