Perhaps you should try some spelling variations:
thanh trung » thanh tung
hoan chinh » hanh chinh, hoa hinh
trung tuan » trung thanh, trung tam, tran tuan
hoc chinh » hoc sinh, hoc kinh
tuan hang » tuan hoang, tuan bang, tuan dang
thanh man » thanh san, thanh van, thanh mau
cong van » cong vang, song van, cong tan
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: ((hoc chinh) or (hoan chinh)) sach - thanh trung tuan hang ((cong van) OR (cong san)) thanh man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chinh) OR (hoan chinh)) sach - thanh trung tuan hang ((cong van) OR (cong san)) thanh man.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chinh) or (hoan chinh)) sach - thanh trung tuan hang ((cong van) OR (cong san)) thanh man".
• Adding a wildcard symbol may retrieve word variants: ((hoc chinh) or (hoan chinh)) sach - thanh trung tuan hang ((cong van) OR (cong san)) thanh man*.