Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
luan hang » luan han, luan hung, luan tang
luan nang » luan van, van nang, luan san
anh tang » anh bang, anh dang, anh nang
anh dung » anh dong, anh huong, sach dung
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: theo tieu xanh - ((anh tang) or (anh dung)) ((luan hang) or (luan nang)) cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((anh tang) OR (anh dung)) ((luan hang) OR (luan nang)) cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((anh tang) or (anh dung)) ((luan hang) or (luan nang)) cong tac toan cao*.