Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
hien sach » dien sach, kien sach, thien hach
trung cua » truong cua, trung cap, dung cua
thong ban » thong van, trong ban, thong bai
thanh cap » thanh lap, hanh cap, thanh ca
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien sach - thanh ((trung cua) or (trung tuan)) thong thong ban ((thanh cap) OR (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien sach - thanh ((trung cua) OR (trung tuan)) thong thong ban ((thanh cap) OR (than cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien sach - thanh ((trung cua) or (trung tuan)) thong thong ban ((thanh cap) OR (than cap))".
• Adding a wildcard symbol may retrieve word variants: hoc hien sach - thanh ((trung cua) or (trung tuan)) thong thong ban ((thanh cap) OR (than cap))*.