Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
hanh hang » thanh hang, hang hang, hanh mang
cua thong » cua thuong, cua khong, cua tong
cong tuan » cong tan, cong luan, cong thanh
hanh han » hanh nhan, hanh phan, hanh san
hanh tap » han tap, hang tap, hanh cap
hanh tai » thanh tai, hang tai, han tai

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 hang) or (hanh han)) cua thong cong tuan ((hanh tap) or (hanh tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - ((hanh hang) OR (hanh han)) cua thong cong tuan ((hanh tap) OR (hanh tai)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - ((hanh hang) or (hanh han)) cua thong cong tuan ((hanh tap) or (hanh tai))*.