Perhaps you should try some spelling variations:
thanh trung » thanh tung
chi sach » chinh sach, chieu sach, co sach
cua thoi » cua hoi, cua toi, cua khoi
dan than » dan chan, ban than, van than
van tuan » van quan, van ban, anh tuan
doi chi » doi khi
cua thi » cua toi, cua chi, cua phi

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: doi chi sach - thanh trung ((cua thi) OR (cua thoi)) phuong ((dan than) OR (van tuan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi sach - thanh trung ((cua thi) OR (cua thoi)) phuong ((dan than) or (van tuan)) cau~".
• Adding a wildcard symbol may retrieve word variants: doi chi sach - thanh trung ((cua thi) OR (cua thoi)) phuong ((dan than) or (van tuan)) cau*.