Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trang » thanh trung, canh tranh, hanh trinh
ho chieu » theo chieu, hoc thieu, doi chieu
trang va » tran van, hang va
cong tap » cuong tap, cong tan, con tap
tong tap » tuong tac, trong tan, tong hop
cong tac » cong ty
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 trang va nhung ((((cong tap) OR (tong tap))) or (cong tac)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trang va nhung ((((cong tap) OR (tong tap))) OR (cong tac)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh trang va nhung ((((cong tap) OR (tong tap))) or (cong tac)) toan cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh trang va nhung ((((cong tap) OR (tong tap))) or (cong tac)) toan cao*.