Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hoc thieu » toc thieu, hoc hien
canh doan » hanh doanh, chan doan, cong doan
hoang van » hang va
duong van » duong va, luong va, dang van
canh dan » canh van, sanh dan, thanh dan
ban tap » bai tap, han tap, ban 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 - ((canh doan) or (canh dan)) va nhung ((hoang van) or (duong van)) ban tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - ((canh doan) OR (canh dan)) va nhung ((hoang van) OR (duong van)) ban tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - ((canh doan) or (canh dan)) va nhung ((hoang van) or (duong van)) ban tap*.