Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
cong quang » luong quang, thong quang, duong quang
hoc thieu » toc thieu, hoc hien
thanh tra » thanh toan, thanh hoa
quan hung » quang hung, quan nhung, luan hung
cong vang » cong lang, cong ngang, cong san
tra quan » tri quan, tran quang, toan quan
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 - thanh tra quan hung ((cong vang) or (cong quang)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - thanh tra quan hung ((cong vang) OR (cong quang)) toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh tra quan hung ((cong vang) or (cong quang)) toan cao*.