Perhaps you should try some spelling variations:
tranh cua » doanh cua, manh cua
thi hanh » thi thanh
cua dang » cua cong, cua ban
nong van » song van, nong san, tong van
nong dan » cong dan, nong san, nguong dan
chat cao » chat co, chat cho, chat bao
doi thi » doi thoi, do thi, doi khi

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "doi thi hanh - canh tranh cua dang ((nong van) OR (nong dan)) chat cao~".
• Adding a wildcard symbol may retrieve word variants: doi thi hanh - canh tranh cua dang ((nong van) OR (nong dan)) chat cao*.