Perhaps you should try some spelling variations:
thuc hien » hoc hien
tranh cua » doanh cua, manh cua
cong cong » cong dong, trong cong, dung cong
theo chu » theo chieu, cho chu, chao chu
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan ban » van ban

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: ((thuc hien) OR (theo chu)) lang - canh tranh cua cong cong van toan ban~.
• Adding a wildcard symbol may retrieve word variants: ((thuc hien) or (theo chu)) lang - canh tranh cua cong cong van toan ban*.