Perhaps you should try some spelling variations:
thanh trung » thanh tung
quang trung » truong trung
thieu xanh » chieu xanh, hieu manh, thien danh
quang dung » ung dung, cuong dung
thien anh » thien danh, tien anh, thien thanh
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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

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