Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tieu xanh » tieu danh, chieu xanh, dieu hanh
cua nhung » va nhung
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
tac toan » tap toan, hach toan, tich toan
tam toan » tap toan, tam than, pham 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 cua nhung cong ((tac toan) OR (tam toan)) ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - anh tang cua nhung cong ((tac toan) OR (tam toan)) ban*".