Perhaps you should try some spelling variations:
thanh tung » thanh cong
cong cong » cong dong, trong cong, dung cong
cot lieu » co lieu, so lieu, cu lieu
tung cua » trung cua, tuong cua, dung cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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) or (vat lieu)) tinh - thanh tung cua cong cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((cot lieu) OR (vat lieu)) tinh - thanh tung cua cong cong dan toan tap.
• Adding a wildcard symbol may retrieve word variants: ((cot lieu) or (vat lieu)) tinh - thanh tung cua cong cong dan toan tap*.