Perhaps you should try some spelling variations:
cuu truong » cua truong, cau truong, cuu thuong
hanh dinh » thanh dinh, hinh dinh, hanh tinh
khi sach » khi sac, khoa sach, khau sach
dinh cuu » dinh chi
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
con dan » cong dan, con ban, con day
co dan » co ban, ca dan, cao dang

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi khi sach - hanh dinh cuu truong ((con dan) or (co dan)) ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi khi sach - hanh dinh cuu truong ((con dan) OR (co dan)) ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: doi khi sach - hanh dinh cuu truong ((con dan) or (co dan)) ((toan cau) or (toan ban))*.