Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
vien thanh » viet thanh, tien thanh, dien thanh
hanh hinh » hanh chinh, hanh tinh, hanh dinh
hinh luat » hanh luat, trinh luat, chinh luan
luat dung » suat dung, luat chung, luat quang
trong dan » trong dang, trong san, trong tan
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((chieu xanh) or (vien thanh)) - hanh hinh luat dung trong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((chieu xanh) OR (vien thanh)) - hanh hinh luat dung trong dan van ban.
• Adding a wildcard symbol may retrieve word variants: doc ((chieu xanh) or (vien thanh)) - hanh hinh luat dung trong dan van ban*.