Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
cong lang » cong vang, cong luong, cong quang
ban luong » ban huong, van luong, ban tuong
van dung » van dong, xay dung, tin dung
dan can » dan chan, dan canh, dan ca
can cau » van cau, ban cau, ca cau

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 - thanh cong lang ((ban luong) OR (van dung)) dan can cau~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh cong lang ((ban luong) or (van dung)) dan can cau*.