Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
phuong dan » phuong danh, phuong doan, huong dan
hieu lang » chieu sang, hieu quang, nhieu tang
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
tang cua » mang cua, hang cua, tang luan
toan ban » van ban
toan cao » toan tap

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: ho ((hieu lang) OR (chinh sach)) - hanh tang cua nhung phuong dan ((toan ban) OR (toan cao))~.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chinh sach)) - hanh tang cua nhung phuong dan ((toan ban) or (toan cao))*.