Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, te sach
hanh hang » thanh hang, hang hang, hanh han
tong cong » trong cong, cong cong, dung cong
hang cua » mang cua, hang ca, huong cua
cua tong » cua cong, cua dong, cua nong
van toan » van tuan, van thanh, manh toan
van tan » van tuan, van ban, van tai

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 hang cua tong cong ((van toan) or (van tan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh hang cua tong cong ((van toan) OR (van tan)) cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh hang cua tong cong ((van toan) or (van tan)) cau*.