Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
dang trung » dung trung, dong trung, quang trung
hanh trang » thanh trung, canh tranh, hanh trinh
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
dap dung » ap dung, dan dung, dap ung
cong san » cong tac
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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 - ((dang trung) or (hanh trang)) dap dung cong san ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((dang trung) OR (hanh trang)) dap dung cong san ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((dang trung) or (hanh trang)) dap dung cong san ((toan cau) or (toan tap))*.