Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hanh tranh » canh tranh, hanh trinh, hanh trang
thanh tung » thanh cong
hoc thieu » toc thieu, hoc hien
hang nong » thang long, han tong
cua hang » cua dang, cua nhung, cua cong
san toan » van toan, dan toan, manh toan

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 - ((hanh tranh) or (thanh tung)) cua hang nong ((san toan) or (tinh toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - ((hanh tranh) OR (thanh tung)) cua hang nong ((san toan) OR (tinh toan)) cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - ((hanh tranh) or (thanh tung)) cua hang nong ((san toan) or (tinh toan)) cao*.