Perhaps you should try some spelling variations:
chau tinh » cuu tinh, ha tinh, cac tinh
tong cong » trong cong, cong cong, dung cong
cua tinh » cua sinh, va tinh, ha tinh
thanh vu » thanh va, thanh ve, thanh tu
cua tong » cua cong, cua dong, cua nong
cong tac » cong ty
toan ban » van ban
vu cua » hu cua, tu cua

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: o ((chau tinh) OR (cua tinh)) - thanh vu cua tong cong tac ((toan tap) OR (toan ban))~.
• Adding a wildcard symbol may retrieve word variants: o ((chau tinh) or (cua tinh)) - thanh vu cua tong cong tac ((toan tap) or (toan ban))*.