Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cua sinh » hoa sinh, va sinh
cong dan » cong san, cong tan, huong dan
than ban » thanh ban, toan ban, nhuan ban
than man » thanh san, tran manh, than phan
hoi cua » hoi chuc
than ma » than va, khan ma, nhan ma

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoi cua sinh - hanh tranh cua nhung cong dan ((than ban) OR (((than man) OR (than ma))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoi cua sinh - hanh tranh cua nhung cong dan ((than ban) or (((than man) OR (than ma))))~".
• Adding a wildcard symbol may retrieve word variants: hoi cua sinh - hanh tranh cua nhung cong dan ((than ban) or (((than man) OR (than ma))))*.