Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
san thanh » ban thanh, van thanh, son thanh
thanh lap » thanh san, phan lap, thanh hai
chu sach » cau sach, thu sach, chuc hach
cap hang » cap hoang, cap bang, cap han
cong san » cong tac
can ban » van ban, toan ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu sach) OR (chieu sach)) - thanh tung ((cap hang) OR (can ban)) cong san thanh lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu sach) OR (chieu sach)) - thanh tung ((cap hang) or (can ban)) cong san thanh lap~".
• Adding a wildcard symbol may retrieve word variants: theo ((chu sach) OR (chieu sach)) - thanh tung ((cap hang) or (can ban)) cong san thanh lap*.