Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
cong thanh » dong thanh, cong trinh, cong tan
hieu lang » chieu sang, hieu quang, nhieu tang
hanh tang » hanh trang, anh tang, hanh mang
thanh hoa » thanh pho
cua dang » cua cong, cua ban
hoa ban » hoa dan, hoa van, hoa han

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) or (hieu lang)) - hanh tang ((cua dang) or (va nhung)) cong thanh hoa ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (hieu lang)) - hanh tang ((cua dang) OR (va nhung)) cong thanh hoa ban.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (hieu lang)) - hanh tang ((cua dang) or (va nhung)) cong thanh hoa ban*.