Perhaps you should try some spelling variations:
thanh tung » thanh cong
nhung cong » thong cong, hang cong, nhung don
tieu tinh » trieu tinh, tieu trinh, lieu tinh
tung tuan » trung tuan, hung tuan, quang tuan
dung cong » dung trong
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 tuan ((nhung cong) OR (dung 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 tuan ((nhung cong) OR (dung cong)) danh ((toan tai) or (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - thanh tung tuan ((nhung cong) OR (dung cong)) danh ((toan tai) or (toan ban))*.