Perhaps you should try some spelling variations:
nhung chong » nhung cong, nhung phong, nhung phuong
hanh tranh » canh tranh, hanh trinh, hanh trang
chieu sach » chinh sach, chiet tach, chieu sang
phong cong » phong chong, thong cong, chong cong
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua, manh cua
van tuan » van quan, van ban, anh tuan
tuan ban » tuan bang, toan ban, luan ban

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: "ho ((chieu sach) OR (hieu lang)) - hanh tranh cua ((phong cong) OR (nhung chong)) van tuan ban~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (hieu lang)) - hanh tranh cua ((phong cong) OR (nhung chong)) van tuan ban*.