Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
trinh dap » trinh lap, trinh da, trinh dan
dung cong » dung trong
dap dung » ap dung, dan dung, dap ung
van than » van thanh, van thang, van phan
van tuan » van quan, van ban, anh tuan

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hanh trinh dap dung cong ((van than) OR (van tuan)) cau~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh trinh dap dung cong ((van than) OR (van tuan)) cau*.