Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
doi chieu » doc hieu, doi chi, ho chieu
trong dan » trong dang, trong tan, trong ban
trong san » trong cac, cong san, dong san
va duong » van duong, va tuong, va huong
thai cao » tai cao, thoai cac, thuat cao
tung va » trung va, tuong va, dung va

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - thanh tung va duong ((trong dan) or (trong san)) thai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh tung va duong ((trong dan) OR (trong san)) thai cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh tung va duong ((trong dan) or (trong san)) thai cao*.