Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
tran doanh » toan doanh, trai doanh, tran danh
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, cong dong
than ban » thanh ban, toan ban, than man
doi thi » doi thoi, do thi, doi khi
thi anh » thi hanh, thi thanh, thich anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi thi anh - ((doanh doanh) or (tran doanh)) cua dung ((cong dan) OR (huong dan)) than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi thi anh - ((doanh doanh) OR (tran doanh)) cua dung ((cong dan) OR (huong dan)) than ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi thi anh - ((doanh doanh) or (tran doanh)) cua dung ((cong dan) OR (huong dan)) than ban".
• Adding a wildcard symbol may retrieve word variants: doi thi anh - ((doanh doanh) or (tran doanh)) cua dung ((cong dan) OR (huong dan)) than ban*.