Perhaps you should try some spelling variations:
hanh trinh » canh tranh
tieu xanh » tieu danh, chieu xanh, dieu hanh
chua hang » cua hang, chua nang, chua xang
hang nong » thang long, han tong
nong tac » cong tac, dong tac, nong tan
tac toan » tap toan, tam toan, hach 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 - ((hanh trinh) OR (hanh chinh)) chua hang nong tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((hanh trinh) OR (hanh chinh)) chua hang nong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((hanh trinh) OR (hanh chinh)) chua hang nong tac toan cau*.