Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
hanh hang » thanh hang, hang hang, hanh han
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, 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: ho chieu sach - hanh hang va nhung cong tan ((toan cau) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh hang va nhung cong tan ((toan cau) OR (toan cao))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh hang va nhung cong tan ((toan cau) OR (toan cao))*.