Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
thanh tong » thanh cong, thanh tung, thanh long
quang hung » quang dung, quang phuong, quang trung
hoc thieu » toc thieu, hoc hien
cua nhung » va nhung
tan thanh » tran thanh, tang thanh, toan thanh
thanh cap » thanh lap, hanh cap, than cap
cong tan » cong tac, cong san, cong thanh

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 tong ((quang hung) or (cua nhung)) cong tan thanh cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - thanh tong ((quang hung) OR (cua nhung)) cong tan thanh cap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh tong ((quang hung) or (cua nhung)) cong tan thanh cap*.