Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh va » tranh van, trang va, trinh va
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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: doi ((hieu manh) OR (((chieu sach) OR (chieu sang)))) - canh tranh va nhung cong dan than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((hieu manh) or (((chieu sach) OR (chieu sang)))) - canh tranh va nhung cong dan than cau~".
• Adding a wildcard symbol may retrieve word variants: doi ((hieu manh) or (((chieu sach) OR (chieu sang)))) - canh tranh va nhung cong dan than cau*.