Perhaps you should try some spelling variations:
thanh tung » thanh cong
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
tieu tinh » trieu tinh, tieu trinh, lieu tinh
tung quan » tuong quan, trung quan, dung quan
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - thanh tung quan ((nhung cong) OR (thong cong)) danh ((toan tai) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu tinh - thanh tung quan ((nhung cong) OR (thong cong)) danh ((toan tai) or (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - thanh tung quan ((nhung cong) OR (thong cong)) danh ((toan tai) or (toan ban))*.