Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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: "((hoi cua) OR (hoi chuc)) sinh - hanh tranh cua nhung cong dan than ban~".
• Adding a wildcard symbol may retrieve word variants: ((hoi cua) OR (hoi chuc)) sinh - hanh tranh cua nhung cong dan than ban*.