Perhaps you should try some spelling variations:
doanh luan » doanh nhan
thong cong » trong cong, tong cong, thong thong
chua xang » chua nang, chuc nang, chu bang
cong van » cong vang, cong san, song van
ho chua » ho chung
van tan » van tuan, van ban, van tai
tan ban » toan ban, tang ban, van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chua xang - hanh ((doanh cua) or (doanh luan)) thong cong van tan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chua xang - hanh ((doanh cua) OR (doanh luan)) thong cong van tan ban.
• Adding a wildcard symbol may retrieve word variants: ho chua xang - hanh ((doanh cua) or (doanh luan)) thong cong van tan ban*.