Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
dong thanh » truong thanh
doi chieu » doc hieu, doi chi, ho chieu
dung dong » dung cong, vung dong, dung trong
tung qua » dung qua, tuong quan, trung quan
qua dung » quang dung, su dung, qua song
toan cao » toan ban
toan tap » toan ban

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 qua dung dong thanh ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh tung qua dung dong thanh ((toan cao) OR (toan tap))*.