Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
thong tan » thong than, thong tran, thong tin
anh tang » anh bang, anh dang, anh sang
anh nang » ganh nang, anh bang, anh dang
va thong » va thuong, va phuong, he thong
tan toan » tan tran, tap toan, van 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 nang)) va thong thong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((anh tang) OR (anh nang)) va thong thong tan toan cao*.