Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
cthanh van » thanh san, thanh va, khanh van
hoc chieu » hoc thieu, ho chieu, hoc hien
thanh van » thanh san, thanh toan, thanh phan
nong cong » cong cong, tong cong, dong cong
nang cong » nang song, dang cong, bang cong
tan toan » tan tran, tap toan, van toan
toan 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 chieu sach - ((cthanh van) or (thanh van)) cua ((nong cong) OR (nang cong)) tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - ((cthanh van) OR (thanh van)) cua ((nong cong) OR (nang cong)) tan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - ((cthanh van) or (thanh van)) cua ((nong cong) OR (nang cong)) tan toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - ((cthanh van) or (thanh van)) cua ((nong cong) OR (nang cong)) tan toan ban*.