Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, te sach
hanh tang » hanh trang, anh tang, hanh mang
cua bang » chua bang, cua ban, cua hang
cua dang » cua cong, cua ban
cong tan » cong tac, cong san, cong thanh
chon cac » cho cac, thong cac, hoc cac
hoa cac » hoa chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - hanh tang ((cua bang) OR (cua dang)) cong tan ((hoa cac) or (chon cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh tang ((cua bang) OR (cua dang)) cong tan ((hoa cac) OR (chon cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - hanh tang ((cua bang) OR (cua dang)) cong tan ((hoa cac) or (chon cac))".
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh tang ((cua bang) OR (cua dang)) cong tan ((hoa cac) or (chon cac))*.