Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
canh doanh » hanh doanh, chinh doanh, doanh doanh
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
hang cong » dang cong, hang nong, bang cong
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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 cua ((dung trong) or (hang cong)) dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - canh doanh cua ((dung trong) OR (hang cong)) dan than cau*.