Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
dung thang » hung thang, cung thang, dung thuong
toc chieu » toc thieu, doc hieu, hoc thieu
cong phan » cong nhan, cong khan, chong phap
phan cong » thanh cong
anh cong » hanh cong, anh dong, thanh cong
dung dat » dung va, dung tai
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc chieu sang - anh cong phan cong ((dung thang) or (dung dat)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu sang - anh cong phan cong ((dung thang) OR (dung dat)) phan dau.
• Adding a wildcard symbol may retrieve word variants: toc chieu sang - anh cong phan cong ((dung thang) or (dung dat)) phan dau*.