Perhaps you should try some spelling variations:
hoc chieu » hoc thieu, ho chieu, hoc hien
doi chieu » doc hieu, doi chi, ho chieu
hanh tang » hanh trang, anh tang, hanh mang
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban
tang su » tang suc, trang su, dang su

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) or (doi chieu)) sach - hanh tang su dung cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (doi chieu)) sach - hanh tang su dung cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (doi chieu)) sach - hanh tang su dung cong dan toan ban*.