Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
canh trinh » canh tranh, hanh trinh, canh tinh
vuong tin » luong tin, vuong tan, duong tien
ho chieu » theo chieu, hoc thieu, doi chieu
va huong » va thuong, va phuong, va tuong
van hung » van dung, manh hung, van duong
tin toan » tinh toan, nin toan, trinh toan
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 - canh trinh ((va huong) or (van hung)) vuong tin toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - canh trinh ((va huong) OR (van hung)) vuong tin toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - canh trinh ((va huong) or (van hung)) vuong tin toan cau*.