Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
cong thanh » dong thanh, cong trinh, truong thanh
hoc thieu » toc thieu, hoc hien
cua nhung » va nhung
anh mang » hanh mang, anh bang, anh dang
mang cua » manh cua, dung cua, ban cua
cong san » cong tac
cong tan » cong tac, cong ty, cong ha
toan cao » toan ban, toan tap

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