Perhaps you should try some spelling variations:
thanh tung » thanh cong
tien manh » tien anh, tien thanh, tran manh
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((tien manh) or (tieng anh)) - ((thanh trung) OR (thanh tung)) cua dung cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tien manh) OR (tieng anh)) - ((thanh trung) OR (thanh tung)) cua dung cong dan toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((tien manh) or (tieng anh)) - ((thanh trung) OR (thanh tung)) cua dung cong dan toan ban*".