Perhaps you should try some spelling variations:
thanh trung » thanh tung
cong thanh » dong thanh, cong trinh, cong tan
tieu tinh » trieu tinh, tieu trinh, lieu tinh
trung dam » trung tam, trung dai, trong dam
dam khung » dai khung, cam hung, cam nhung
cong tac » cong ty
san cau » van cau, ban cau, can cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu tinh - thanh trung dam khung ((cong thanh) or (cong tac)) san cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - thanh trung dam khung ((cong thanh) OR (cong tac)) san cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - thanh trung dam khung ((cong thanh) or (cong tac)) san cau*.