Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chieu sang, chieu xanh
trung tuan » trung thanh, trung tam, tran tuan
tuan trong » thuan trong, quan trong, tran trong
toan thanh » tran thanh, toan thang, tan thanh
hoan thanh » hoang thanh, ban thanh, van thanh

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) or (chiet tach)) - thanh trung tuan trong cong ((toan thanh) OR (hoan thanh)) ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chiet tach)) - thanh trung tuan trong cong ((toan thanh) OR (hoan thanh)) ca.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (chiet tach)) - thanh trung tuan trong cong ((toan thanh) OR (hoan thanh)) ca".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chiet tach)) - thanh trung tuan trong cong ((toan thanh) OR (hoan thanh)) ca*.