Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
dung cong » dung trong
chi hanh » chi nhanh, chi thanh, thi hanh
tranh va » tranh van, trang va, trinh va
tan toan » tan tran, tap toan, van toan
toan ban » van ban
chi dan » choi dan, chi van, thi dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chi hanh) or (chi dan)) - canh tranh va ((nhung cong) OR (dung cong)) tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi hanh) OR (chi dan)) - canh tranh va ((nhung cong) OR (dung cong)) tan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chi hanh) or (chi dan)) - canh tranh va ((nhung cong) OR (dung cong)) tan toan ban".
• Adding a wildcard symbol may retrieve word variants: doi ((chi hanh) or (chi dan)) - canh tranh va ((nhung cong) OR (dung cong)) tan toan ban*.