Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thien danh » thien anh, thien dang, thien chanh
thanh tung » thanh cong
chuan dong » chua dong, chuan long, chuyen dong
dong cong » duong cong, dung cong, dang cong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan tap » toan 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 ((thien danh) OR (thien thanh)) - ((thanh trung) or (thanh tung)) chuan dong cong tac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien danh) OR (thien thanh)) - ((thanh trung) OR (thanh tung)) chuan dong cong tac toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien danh) OR (thien thanh)) - ((thanh trung) or (thanh tung)) chuan dong cong tac toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien danh) OR (thien thanh)) - ((thanh trung) or (thanh tung)) chuan dong cong tac toan tap*.