Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, trung tam, tran tuan
tuan nhung » quan nhung, tuan hung, thuat nhung
chuc danh » chuc nganh, thuc hanh, chuc nang
cong van » cong vang, song van, cong tan
cong san » cong tac
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho ((chuc danh) or (chieu sach)) - thanh trung tuan nhung ((cong van) OR (cong san)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho ((chuc danh) OR (chieu sach)) - thanh trung tuan nhung ((cong van) OR (cong san)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cho ((chuc danh) or (chieu sach)) - thanh trung tuan nhung ((cong van) OR (cong san)) toan cao".
• Adding a wildcard symbol may retrieve word variants: cho ((chuc danh) or (chieu sach)) - thanh trung tuan nhung ((cong van) OR (cong san)) toan cao*.