Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
quang doan » quan doan, quang hoan, quang toan
dung cong » dung trong
dia danh » dia ban, gia dinh
doan tap » toan tap, doan cap, doanh tai
hanh va » hang va, hanh vi
va quan » van quan, tac quan, hai quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((dieu hanh) or (dia danh)) - hanh va quan ((nhung cong) or (dung cong)) quang doan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((dieu hanh) OR (dia danh)) - hanh va quan ((nhung cong) OR (dung cong)) quang doan tap.
• Adding a wildcard symbol may retrieve word variants: theo ((dieu hanh) or (dia danh)) - hanh va quan ((nhung cong) or (dung cong)) quang doan tap*.