Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
truong cao » truong dai
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, mot chieu
ho chieu » theo chieu, hoc thieu, mot chieu
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
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: ((ho chieu) OR (doi chieu)) sach - thanh ((trung tuan) or (truong cao)) thong cong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sach - thanh ((trung tuan) OR (truong cao)) thong cong dan than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) sach - thanh ((trung tuan) or (truong cao)) thong cong dan than cap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) sach - thanh ((trung tuan) or (truong cao)) thong cong dan than cap*.