Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
thanh tran » thanh trang, thanh toan, thanh tra
van thuong » va thuong, van chuong, van phuong
hoc thieu » toc thieu, hoc hien
van thong » van phong, va thong, van thang
cong san » cong tac
san tuan » van tuan, san luan, san quan
tuan tai » toan tai, quan tai, tan tai

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 tran ((van thong) or (van thuong)) cong san tuan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - thanh tran ((van thong) OR (van thuong)) cong san tuan tai.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh tran ((van thong) or (van thuong)) cong san tuan tai*.