Perhaps you should try some spelling variations:
thieu hach » thien hach, chieu sach, hieu cach
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong dang » cong dong, cong dung, cong danh
thanh mau » hanh mau, thanh san, thanh hai
cong dan » cong san, cong tan, huong dan

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 hach - canh tranh cua nhung ((cong dang) OR (cong dan)) thanh mau~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu hach - canh tranh cua nhung ((cong dang) or (cong dan)) thanh mau*.