Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
dan phan » doan phan, dan chan, van phan
dung dat » dung va, dung tai
dat than » dat thanh, dan than, dat khanh
than cap » khan cap, thanh lap, thanh cac
phan do » phan bo, phan co, phan mo
do ung » do luong, do trung, do quang

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 sang) or (chieu sach)) - dan phan do ung dung dat than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu sach)) - dan phan do ung dung dat than cap.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu sach)) - dan phan do ung dung dat than cap*.