Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trung cao » truong cao, trung cap, trung ca
dung cong » dung trong
van thanh » ban thanh, van tuan
ho chieu » theo chieu, hoc thieu, doi chieu
trung co » trung bo, trong co, truong cao
dan toan » van toan, dan than, manh toan

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 - thanh ((trung cao) or (trung co)) dung cong ((dan toan) or (van thanh)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - thanh ((trung cao) OR (trung co)) dung cong ((dan toan) OR (van thanh)) cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh ((trung cao) or (trung co)) dung cong ((dan toan) or (van thanh)) cao*.