Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
tieu xanh » tieu danh, chieu xanh, dieu hanh
anh tang » anh bang, anh nang, anh sang
anh dang » anh dong, anh dung, anh bang
tan toan » tan tran, van toan, dan toan
tap toan » tap doan, tap quan, bai toan

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 dang)) cua nhung cong ((tan toan) or (tap toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((anh tang) OR (anh dang)) cua nhung cong ((tan toan) OR (tap toan)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((anh tang) OR (anh dang)) cua nhung cong ((tan toan) or (tap toan)) tap".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((anh tang) OR (anh dang)) cua nhung cong ((tan toan) or (tap toan)) tap*.