Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((((chieu sach) or (chieu sang))) or (chieu tinh)) - canh tranh cua nhung cong dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((((chieu sach) OR (chieu sang))) OR (chieu tinh)) - canh tranh cua nhung cong dan phan tu.
• Adding a wildcard symbol may retrieve word variants: doi ((((chieu sach) or (chieu sang))) or (chieu tinh)) - canh tranh cua nhung cong dan phan tu*.