Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
thanh dung » thanh duong, thanh tung, thanh hung
hoc thieu » toc thieu, hoc hien
cua nhung » va nhung
dung cua » dung luan, dung cho
cong dan » cong san, cong tan, huong dan
cong tac » cong ty
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sang - thanh dung cua nhung ((cong dan) or (cong tac)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - thanh dung cua nhung ((cong dan) OR (cong tac)) phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh dung cua nhung ((cong dan) or (cong tac)) phan cau*.