Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, viet sach
nang hang » nang sang, hang hang, cang thang
hang cong » dang cong, hang nong, bang cong
hang cua » mang cua, hang ca, huong cua
cua hang » cua dang, cua nhung, cua cong
te sach » toc sach
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) OR (te sach)) - nang hang cua hang cong ((tinh toan) or (van tan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu sach) OR (te sach)) - nang hang cua hang cong ((tinh toan) OR (van tan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu sach) OR (te sach)) - nang hang cua hang cong ((tinh toan) or (van tan)) cau".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu sach) OR (te sach)) - nang hang cua hang cong ((tinh toan) or (van tan)) cau*.