Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tran » thanh trang, thanh toan, thanh tra
trong dang » truong dang, trong dan, trong dong
dang thanh » dong thanh, dang hanh, hoang thanh
hieu lang » chieu sang, hieu quang, nhieu tang
thanh cau » thanh chau, thanh mau, nhanh cau
tran tin » tran tien, trang tin, toan tin

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) or (hieu lang)) - thanh tran tin dung trong dang thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (hieu lang)) - thanh tran tin dung trong dang thanh cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (hieu lang)) - thanh tran tin dung trong dang thanh cau*.