Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hanh dung » thanh dung, anh dung, hanh dong
luan tang » luan nang, lan tang, xuan trang
luan danh » luan thanh, luan van, luan nang
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
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 dung ((luan tang) or (luan danh)) cong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sang - hanh dung ((luan tang) OR (luan danh)) cong van toan cao.
• Adding a wildcard symbol may retrieve word variants: toc thieu sang - hanh dung ((luan tang) or (luan danh)) cong van toan cao*.