Perhaps you should try some spelling variations:
thanh trung » thanh tung
chiet tach » chieu sach
trung tuan » trung thanh, trung tam, tran tuan
tuan tong » toan tong, thuan trong, toan thong
cong vang » cong lang, cong quang, cong ngang
khang cau » hang cau, khang cu, khang chan
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chinh sach) OR (chiet tach)) - thanh trung tuan tong ((cong vang) OR (cong san)) khang cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chinh sach) OR (chiet tach)) - thanh trung tuan tong ((cong vang) OR (cong san)) khang cau".
• Adding a wildcard symbol may retrieve word variants: doi ((chinh sach) OR (chiet tach)) - thanh trung tuan tong ((cong vang) OR (cong san)) khang cau*.