Perhaps you should try some spelling variations:
thanh tung » thanh cong
chua xang » chua nang, chu bang, chua dong
khi sach » khi sac, khoa sach, khau sach
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban
chuc » thuc, chu, phuc

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "doi khi sach - thanh tung ((chua xang) OR (chuc nang)) cong dan toan ban~".
• Adding a wildcard symbol may retrieve word variants: doi khi sach - thanh tung ((chua xang) OR (chuc nang)) cong dan toan ban*.