Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
canh doanh » hanh doanh, chinh doanh, doanh doanh
doanh chua » doanh cua, doanh chu, doanh chung
hoc thieu » toc thieu, hoc hien
chua nang » chuc nang, chua xang, kha nang
nang cong » nang song, dang cong, bang cong
ngang van » ngan van, nang van, dang van
hoang van » hang va

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 sach - canh doanh chua nang cong ((ngang van) or (hoang van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - canh doanh chua nang cong ((ngang van) OR (hoang van)) ban*.