Perhaps you should try some spelling variations:
thanh trung » thanh tung
trieu minh » trieu tinh, trien minh, trien kinh
chiet tach » chieu sach
dang cong » dung cong
trung ha » trung hoc, trung tam, trung cap
cong san » cong tac
than cao » toan cao, thai cao, than sao
than cap » khan cap, thanh lap, thanh cac
ha dang » hai dang, ha dong, ha tang

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((trieu minh) or (chiet tach)) - thanh trung ha dang cong san ((than cao) OR (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((trieu minh) OR (chiet tach)) - thanh trung ha dang cong san ((than cao) OR (than cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((trieu minh) or (chiet tach)) - thanh trung ha dang cong san ((than cao) OR (than cap))".
• Adding a wildcard symbol may retrieve word variants: doi ((trieu minh) or (chiet tach)) - thanh trung ha dang cong san ((than cao) OR (than cap))*.