Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh tung » thanh cong
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, dung cong
tung cao » nung cao, truong cao, trung cap
san toan » van toan, dan toan, 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 xanh) or (chieu tinh)) - thanh tung cao ((hang cong) or (bang cong)) san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu tinh)) - thanh tung cao ((hang cong) OR (bang cong)) san toan cao.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu tinh)) - thanh tung cao ((hang cong) or (bang cong)) san toan cao*.