Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
thanh tran » thanh trang, thanh tra, thanh tuan
thanh toan » thanh hoa, thanh san, tinh toan
hien hanh » dieu hanh
manh toan » anh tuan, tinh toan
tran van » luan van
van dung » van dong, xay dung, tin dung

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: hoc ((thiet tach) OR (hien hanh)) - thanh tran van dung trong ((manh toan) OR (thanh toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thiet tach) or (hien hanh)) - thanh tran van dung trong ((manh toan) OR (thanh toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thiet tach) or (hien hanh)) - thanh tran van dung trong ((manh toan) OR (thanh toan)) cau*.