Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
nhung cong » dung cong, thong cong, hang cong
hanh tran » hanh trang, thanh tran, hanh tram
tong cong » trong cong, cong cong, dung cong
danh toan » manh toan, anh toan, dan toan
tran van » luan van
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: toc thieu sang - hanh tran van ((nhung cong) or (tong cong)) danh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sang - hanh tran van ((nhung cong) OR (tong cong)) danh toan cao.
• Adding a wildcard symbol may retrieve word variants: toc thieu sang - hanh tran van ((nhung cong) or (tong cong)) danh toan cao*.