Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh tranh » canh tranh, hanh trinh, hanh trang
hang cong » dang cong, hang nong, bang cong
manh toan » thanh toan, anh tuan, tinh toan
ho chieu » theo chieu, hoc thieu, doi chieu
tranh va » tranh van, trang va, trinh va
va hang » van hang, va nang, va lang
van tan » van tuan, van ban, van tai

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 tranh va hang cong ((van tan) or (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh tranh va hang cong ((van tan) OR (manh toan)) cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh tranh va hang cong ((van tan) or (manh toan)) cau*.