Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu tinh » trieu tinh, lieu tinh, chau tinh
hieu lang » chieu sang, hieu quang, nhieu tang
trung cua » truong cua, trung tuan, trung cap
dong tan » duong tan, dong tai, cong tan
dong san » cong san, dong bang, dong von
toan ban » van ban

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 tinh) or (hieu lang)) - thanh trung cua cong ((dong tan) OR (dong san)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (hieu lang)) - thanh trung cua cong ((dong tan) OR (dong san)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu tinh) or (hieu lang)) - thanh trung cua cong ((dong tan) OR (dong san)) toan ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (hieu lang)) - thanh trung cua cong ((dong tan) OR (dong san)) toan ban*.