Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hanh doanh » hang doanh, chinh doanh, doanh doanh
hoc thieu » toc thieu, hoc hien
cua thong » cua thuong, cua khong, suat thong
duong van » duong va, luong va, dang van
cua tong » cua cong, cua dong, cua nong
van quan » van ban
quan ban » quang ban, qua ban, quan van

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh doanh ((cua thong) OR (cua tong)) duong van quan ban~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh doanh ((cua thong) or (cua tong)) duong van quan ban*.