Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
nhung cong » dung cong, hang cong, nhung don
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh ban » thanh ban, hang ban, hanh san
tac toan » tap toan, tam toan, hach toan
toan ban » van ban
ban cua » ban quan

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 - hanh ban cua ((nhung cong) OR (thong cong)) tac toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh ban cua ((nhung cong) OR (thong cong)) tac toan ban*".