Perhaps you should try some spelling variations:
thanh trung » thanh tung
lieu tinh » trieu tinh, diep tinh, bien tinh
trung cua » truong cua, trung tuan, trung cap
cot lieu » co lieu, vat lieu, so lieu
cua dong » chua dong, cua cong, cua dang
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: cot lieu tinh - thanh trung cua dong ((cong tan) or (cong tac)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cot lieu tinh - thanh trung cua dong ((cong tan) OR (cong tac)) toan cao.
• Adding a wildcard symbol may retrieve word variants: cot lieu tinh - thanh trung cua dong ((cong tan) or (cong tac)) toan cao*.