Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hanh doanh » hang doanh, chinh doanh, doanh doanh
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
dung cong » dung trong
bang cong » dang cong, bang song, hang cong
van tan » van tuan, van ban, van tai
tan ban » toan ban, tang ban, van ban

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 doanh cua ((dung cong) or (bang cong)) van tan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - hanh doanh cua ((dung cong) OR (bang cong)) van tan ban*.