Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
tong cong » trong cong, cong cong, dang cong
dung cong » dung trong
ban thanh » ban hanh
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
trinh va » trinh van, trinh vat, trinh ve
ban hang » ngan hang

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: theo chu xanh - canh trinh va ((tong cong) OR (dung cong)) ((ban thanh) OR (ban hang)) cau~.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - canh trinh va ((tong cong) or (dung cong)) ((ban thanh) or (ban hang)) cau*.