Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, tien anh
anh nang » ganh nang, anh bang, anh sang
anh dang » anh dong, anh dung, anh bang
va trong » va truong, va thong, va tuong
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
toan cau » 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) or (dieu hanh)) - ((anh nang) or (anh dang)) va trong cong tap toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (dieu hanh)) - ((anh nang) OR (anh dang)) va trong cong tap toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((tieu xanh) or (dieu hanh)) - ((anh nang) or (anh dang)) va trong cong tap toan cau*.