Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hanh trang » thanh trung, canh tranh, hanh trinh
hoc thieu » toc thieu, hoc hien
cua dang » cua cong
cong dan » cong san, cong tan, huong dan
dan khan » dan khanh, dan chan, dan than
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - hanh trang ((cua dang) or (cua ban)) cong dan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh trang ((cua dang) OR (cua ban)) cong dan khan cap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh trang ((cua dang) or (cua ban)) cong dan khan cap*.