Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
truong nam » trong nam, truong ham, truong lam
doi chieu » doc hieu, doi chi, ho chieu
trung nam » trung tam, trong nam, trung cap
dang cong » dung cong
cong manh » cong danh, duong manh, cong thanh
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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 ((truong nam) or (trung nam)) dang cong manh ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh ((truong nam) OR (trung nam)) dang cong manh ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh ((truong nam) or (trung nam)) dang cong manh ((toan cau) or (toan cao))*.