Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu lang » chieu sang, hieu quang, nhieu tang
hoc hieu » hoc thieu, hoc hien, doc hieu
cao dung » cao dang, cao dong, cao ung
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan tap » toan ban
ap dung » xay dung, van dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu lang - thanh trung ((ap dung) or (cao dung)) cong tac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu lang - thanh trung ((ap dung) OR (cao dung)) cong tac toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc hieu lang - thanh trung ((ap dung) or (cao dung)) cong tac toan tap*.