Perhaps you should try some spelling variations:
chiet tach » chieu sach
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
hang cong » dang cong, hang nong, bang cong
tinh cua » trinh cua, sinh cua, tinh chat
cua hang » cua dang, cua nhung, cua cong
van canh » van hanh, van manh, van thanh
van anh » van thanh, tuan anh, van minh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chinh sach) or (chiet tach)) - nhanh tinh cua hang cong ((van canh) OR (van anh)) chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chinh sach) OR (chiet tach)) - nhanh tinh cua hang cong ((van canh) OR (van anh)) chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chinh sach) or (chiet tach)) - nhanh tinh cua hang cong ((van canh) OR (van anh)) chau".
• Adding a wildcard symbol may retrieve word variants: ho ((chinh sach) or (chiet tach)) - nhanh tinh cua hang cong ((van canh) OR (van anh)) chau*.