Perhaps you should try some spelling variations:
cong toan » cong tan, cong hoan, cong tuan
toan phan » thanh phan, toan ban, hoa phan
chi hanh » chi nhanh, chi thanh, chi anh
thi hanh » thi thanh
van dung » van dong, xay dung, tin dung
phan dau » phan tu, hang dau
va dung » va duong, vat dung, va ung

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: doi ((chi hanh) OR (thi hanh)) - canh tranh ((va dung) OR (van dung)) cong toan phan dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chi hanh) or (thi hanh)) - canh tranh ((va dung) OR (van dung)) cong toan phan dau~".
• Adding a wildcard symbol may retrieve word variants: doi ((chi hanh) or (thi hanh)) - canh tranh ((va dung) OR (van dung)) cong toan phan dau*.