Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
cap trong » cay trong, ca trong, ap trong
cad trong » cay trong, ca trong, chat trong
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
toan cau » 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 trung ((cap trong) or (cad trong)) cong san ((toan cau) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trung ((cap trong) OR (cad trong)) cong san ((toan cau) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh trung ((cap trong) or (cad trong)) cong san ((toan cau) or (van ban))*.