Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hieu lang » chieu sang, hieu quang, nhieu tang
cua bang » chua bang, cua ban, cua hang
cua dang » cua cong, cua ban
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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 tinh) or (hieu lang)) - canh tranh ((cua bang) OR (cua dang)) cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (hieu lang)) - canh tranh ((cua bang) OR (cua dang)) cong dan toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu tinh) or (hieu lang)) - canh tranh ((cua bang) OR (cua dang)) cong dan toan cao*".