Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
hanh mang » nhanh mang, hanh trang, nhanh lang
cua khong » hua khong, cua phuong, cua thuong
khoan cam » khoa cam, khoan va, phan cam
mang cua » manh cua, dung cua, ban cua
cong dan » cong san, cong tan, cong dong

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 mang cua khong ((cong dan) or (huong dan)) khoan cam~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh mang cua khong ((cong dan) OR (huong dan)) khoan cam.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh mang cua khong ((cong dan) or (huong dan)) khoan cam*.