Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
thanh tung » thanh cong
phuong dan » phuong danh, phuong doan, huong dan
thi kieu » thi kiem, thi dieu, thi kim
cua dung » cua dang, cua dong, qua dung
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
co lieu » cot lieu, co hieu, so lieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((co lieu) or (thi kieu)) tinh - ((thanh trung) OR (thanh tung)) cua dung phuong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((co lieu) OR (thi kieu)) tinh - ((thanh trung) OR (thanh tung)) cua dung phuong dan toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((co lieu) or (thi kieu)) tinh - ((thanh trung) OR (thanh tung)) cua dung phuong dan toan cao*".