Perhaps you should try some spelling variations:
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
viet tach » viet sach, viet thanh, chiet tach
viet tech » viet sach
cua nhung » va nhung
tung cua » trung cua, tuong cua, dung cua
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: thep ((viet tach) OR (viet tech)) - thanh tung cua nhung cong tac than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thep ((viet tach) OR (viet tech)) - thanh tung cua nhung cong tac than cau".
• Adding a wildcard symbol may retrieve word variants: thep ((viet tach) OR (viet tech)) - thanh tung cua nhung cong tac than cau*.