Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
nhung cau » chung cu, nhung bai, nhu cau
nong san » cong san, nong dan, trong san
dong san » cong san, dong bang, dong von

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sang) or (chieu sach)) - hanh tranh cua nhung ((nong san) OR (dong san)) nhung cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu sach)) - hanh tranh cua nhung ((nong san) OR (dong san)) nhung cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) or (chieu sach)) - hanh tranh cua nhung ((nong san) OR (dong san)) nhung cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chieu sach)) - hanh tranh cua nhung ((nong san) OR (dong san)) nhung cau*.