Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trung » thanh trung, hanh trang, manh trung
luong cong » dung cong, trong cong, cong cong
van thang » van thanh, van khang, van hang
ho chieu » theo chieu, hoc thieu, doi chieu
trung do » trung bo, trung co, trung du
dan than » dan chan, ban than, van than

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - hanh trung do luong cong ((dan than) OR (van thang)) cap~.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh trung do luong cong ((dan than) or (van thang)) cap*.