Perhaps you should try some spelling variations:
truong thanh » truong trung, truong thpt, truong chung
trung tran » trung tuan, trung thanh, trung tam
hong cong » thong cong, hoang cong, chong cong
30 trieu » 25 trieu
cong dan » cong san, cong tan, huong dan
chan dau » phan dau, han dau, chuan dao
doan » doanh, toan, soan

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

• Performing a fuzzy search may retrieve terms with similar spellings: 30 trieu tinh - thanh ((trung tran) or (truong thanh)) hong cong dan ((chan dau) OR (chan doan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: 30 trieu tinh - thanh ((trung tran) OR (truong thanh)) hong cong dan ((chan dau) OR (chan doan)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "30 trieu tinh - thanh ((trung tran) or (truong thanh)) hong cong dan ((chan dau) OR (chan doan))".
• Adding a wildcard symbol may retrieve word variants: 30 trieu tinh - thanh ((trung tran) or (truong thanh)) hong cong dan ((chan dau) OR (chan doan))*.