Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
nhung bong » nhung bang, nhung chong, nhung huong
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
van toan » van tuan, van tan, van thanh
toan tap » toan ban

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