Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
hat trong » chat trong, nhat trong, vat trong
cong san » cong tac
san chan » san chang, dan chan, san chay
chan cao » chan cho, chat cao, chay cao

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 xanh) or (chieu sach)) - ((thanh trung) or (thanh tung)) hat trong cong san chan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - ((thanh trung) OR (thanh tung)) hat trong cong san chan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sach)) - ((thanh trung) or (thanh tung)) hat trong cong san chan cao*.