Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh hung » thanh huong, thanh tung, thanh trung
hanh dung » thanh dung, anh dung, hanh dong
dung cong » dung trong
cong danh » cuong danh, cong dan, cong thanh
danh phan » doanh phan, danh nhan, danh phap
ho chieu » theo chieu, hoc thieu, mot chieu
tay dung » xay dung, tac dung, tay nung

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 - ((thanh hung) or (hanh dung)) tay dung cong danh phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((thanh hung) OR (hanh dung)) tay dung cong danh phan tu*.