Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, ho chieu
hoc thieu » toc thieu, hoc hien
hanh dung » thanh dung, anh dung, hanh dong
luan danh » luan thanh, luan van, luan san
luan nang » luan van, van nang, luan san
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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: ((doi chieu) or (hoc thieu)) sach - hanh dung ((luan danh) or (luan nang)) cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (hoc thieu)) sach - hanh dung ((luan danh) OR (luan nang)) cong tac toan ban.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (hoc thieu)) sach - hanh dung ((luan danh) or (luan nang)) cong tac toan ban*.