Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
bang cong » bang song, hang cong, dung cong
dang cong » dung cong
anh tang » anh bang, anh dang, anh sang
anh nang » ganh nang, anh bang, anh dang
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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)) luan ((bang cong) or (dang cong)) dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((anh tang) OR (anh nang)) luan ((bang cong) OR (dang cong)) dan than cao.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((anh tang) or (anh nang)) luan ((bang cong) or (dang cong)) dan than cao*.