Perhaps you should try some spelling variations:
thanh tung » thanh cong
lieu tinh » diep tinh, bien tinh
cong cong » cong dong, trong cong, dung cong
tung cua » trung cua, tuong cua, dung cua
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » 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: doi ((lieu tinh) or (trieu tinh)) - thanh tung cua cong cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((lieu tinh) OR (trieu tinh)) - thanh tung cua cong cong san toan cau*.