Perhaps you should try some spelling variations:
thanh tung » thanh cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hang cong » dang cong, hang nong, bang cong
hoc hieu » hoc thieu, hoc hien, doc hieu
cua hang » cua dang, cua nhung, cua cong
cong tac » cong ty
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - ((hanh chinh) OR (thanh tung)) cua hang cong tac ((toan cau) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - ((hanh chinh) or (thanh tung)) cua hang cong tac ((toan cau) OR (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - ((hanh chinh) or (thanh tung)) cua hang cong tac ((toan cau) OR (toan cao))*.