Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
nhung cong » thong cong, hang cong, nhung don
tranh cua » doanh cua, manh cua
dung cong » dung trong
doan phan » doanh phan, toan phan, dan phan
phan cac » nhan cach, phan dau, phan lap

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

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