Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh mang » nhanh mang, hanh trang, nhanh lang
khoan cam » khoa cam, khoan va, phan cam
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
phan cac » nhan cach, phan dau, phan lap
mang va » mang vua, hang va, bang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - hanh mang va nhung ((cong dan) OR (cong tan)) ((phan cac) OR (khoan cam))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - hanh mang va nhung ((cong dan) OR (cong tan)) ((phan cac) OR (khoan cam))".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh mang va nhung ((cong dan) OR (cong tan)) ((phan cac) OR (khoan cam))*.