Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cua nhung » va nhung
tinh cua » trinh cua, sinh cua, tinh chat
dan toan » van toan, dan than, manh toan
van tuan » van quan, van ban, anh tuan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh tinh cua nhung cong ((((dan toan) OR (xuan toan))) OR (van tuan)) cau~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh tinh cua nhung cong ((((dan toan) or (xuan toan))) or (van tuan)) cau*.