Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chieu sang, chieu xanh
hieu quan » hieu qua, lieu quan, thien quan
trung cua » truong cua, trung tuan, trung cap
dang cong » dung cong
cua dang » cua cong, cua ban
cong tac » cong ty
tac tuan » tac quan, ta tuan, tai tuan
tuan cao » toan cao, juan cao, quang cao

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