Perhaps you should try some spelling variations:
thanh trung » thanh tung
quang trung » truong trung
thieu xanh » chieu xanh, hieu manh, thien anh
quang dung » ung dung, cuong dung
hoc thieu » toc thieu, hoc hien
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 thieu xanh - thanh trung ((quang dung) or (quang trung)) cong tac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh trung ((quang dung) OR (quang trung)) cong tac toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh trung ((quang dung) or (quang trung)) cong tac toan tap*.