Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
tuong cua » truong cua, huong cua, thong cua
cong tac » cong ty
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap
cua dan » cua dang, cua ban, ca dan

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 tuong cua dan ((cong san) or (cong tac)) ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh tuong cua dan ((cong san) OR (cong tac)) ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh tuong cua dan ((cong san) or (cong tac)) ((toan cau) or (toan cao))*.