Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
manh toan » thanh toan, anh tuan
chao chu » cho chu, cua chu, cao cho
chu xanh » chu manh, chieu xanh, chua xang

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: "chao chu xanh - hanh tranh cua ((hang cong) OR (dang cong)) ((manh toan) OR (tinh toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: chao chu xanh - hanh tranh cua ((hang cong) OR (dang cong)) ((manh toan) OR (tinh toan)) cau*.