Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
luan thong » luan phong, luan tuong, luat thong
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
hanh dung » thanh dung, anh dung, hanh dong
cong dan » cong san, cong tan, huong dan
toan tap » toan 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 sach - hanh dung luan thong cong dan ((toan tap) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh dung luan thong cong dan ((toan tap) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh dung luan thong cong dan ((toan tap) or (van ban))*.