Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
canh trinh » canh tranh, hanh trinh, canh tinh
ho chieu » theo chieu, hoc thieu, doi chieu
trinh va » trinh van, trinh vat, trinh ve
cong tac » cong ty
chanh tu » nhanh tu, thanh tu, chinh tu
hanh tu » anh tu, danh tu

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 - canh trinh va nhung ((cong san) OR (cong tac)) ((chanh tu) or (hanh tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - canh trinh va nhung ((cong san) OR (cong tac)) ((chanh tu) OR (hanh tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - canh trinh va nhung ((cong san) OR (cong tac)) ((chanh tu) or (hanh tu))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - canh trinh va nhung ((cong san) OR (cong tac)) ((chanh tu) or (hanh tu))*.