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
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong van » cong vang, cong san, song van
phan cac » nhan cach, phan lap, phan van
phan dau » phan tu, hang dau

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)) - canh tranh cua nhung cong van ((phan cac) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu sach)) - canh tranh cua nhung cong van ((phan cac) OR (phan dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) OR (chieu sach)) - canh tranh cua nhung cong van ((phan cac) or (phan dau))".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) OR (chieu sach)) - canh tranh cua nhung cong van ((phan cac) or (phan dau))*.