Perhaps you should try some spelling variations:
truong thanh » truong trung, truong thpt, truong chung
chiet tach » chieu sach
trung tuan » trung thanh, trung tam, tran tuan
ho chiet » ho chieu, ho thiet, hoc thiet
tong ban » trong ban, tuong ban, tong van
hang cap » hang cau, hang cac, nang cap
hang ca » hang va, nang cao, hang tai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - thanh ((trung tuan) OR (truong thanh)) han tong ban ((hang cap) OR (hang ca))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - thanh ((trung tuan) or (truong thanh)) han tong ban ((hang cap) OR (hang ca))~".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - thanh ((trung tuan) or (truong thanh)) han tong ban ((hang cap) OR (hang ca))*.