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
doanh va » doanh tai, doanh cua, hanh va
san than » sang than, san thanh, ban than
than ban » thanh ban, toan ban, than man
doi chi » doi khi

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 - canh ((doanh va) OR (doan va)) ((nhung cong) OR (dung cong)) san than ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi hanh - canh ((doanh va) or (doan va)) ((nhung cong) OR (dung cong)) san than ban~".
• Adding a wildcard symbol may retrieve word variants: doi chi hanh - canh ((doanh va) or (doan va)) ((nhung cong) OR (dung cong)) san than ban*.