Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trong » hanh trang, anh trong, hinh trong
doi chieu » doc hieu, doi chi, ho chieu
trong thu » trong nha
thu dung » thuy dung, thuc dung, thu dang
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
toan cau » toan cao, toan ban, toan tai
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 - hanh trong thu dung ((cong tan) or (cong tac)) ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh trong thu dung ((cong tan) OR (cong tac)) ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh trong thu dung ((cong tan) or (cong tac)) ((toan cau) or (toan tap))*.