Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
chieu tinh » trieu tinh, lieu tinh, chau tinh
cong hach » cong sach, cong thanh, cong khanh
hach toan » thanh toan, manh toan
cua bang » chua bang, cua ban, cua hang
cua dang » cua cong, cua ban
toan cau » 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 sang) or (chieu tinh)) - canh tranh ((cua bang) or (cua dang)) cong hach toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu tinh)) - canh tranh ((cua bang) OR (cua dang)) cong hach toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu tinh)) - canh tranh ((cua bang) or (cua dang)) cong hach toan cau*.