Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
cua thuong » cua truong, cua phuong, ca thuong
hoc chieu » hoc thieu, ho chieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
cong tan » cong tac, cong san, cong thanh
gian ban » gian bana, gian lan, gian bac
gian dan » gian lang

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

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