Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
thieu sang » chieu sang, thieu khang, thieu quang
canh doanh » hanh doanh, chinh doanh, kinh doanh
hoc thieu » toc thieu, hoc hien
song vang » cong vang, song hang, song hong
song van » hoang van, trong van, duong van
phan dau » phan tu, hang dau
va dung » van dung, va duong, vat dung

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 doanh) or (doanh doanh)) va dung ((song van) or (song vang)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - ((canh doanh) OR (doanh doanh)) va dung ((song van) OR (song vang)) phan dau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - ((canh doanh) or (doanh doanh)) va dung ((song van) or (song vang)) phan dau*.