Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
truong van » trong van, truong va, truong dai
dung cong » dung trong
hien anh » hien hanh, thien anh, tien anh
dien anh » tieng anh, dien dan
van dung » van dong, xay dung, tin dung
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien anh) or (dien anh)) - thanh truong van dung cong ((dan toan) OR (dan than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien anh) OR (dien anh)) - thanh truong van dung cong ((dan toan) OR (dan than)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien anh) or (dien anh)) - thanh truong van dung cong ((dan toan) OR (dan than)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien anh) or (dien anh)) - thanh truong van dung cong ((dan toan) OR (dan than)) cau*.